Currency Reference Guide
Error notes, fancy serial numbers, and star note production runs for US currency.
Error Notes
Printing errors that make bills valuable to collectors. Ranked by rarity and value.
| Tier | Error Type | Description | Rarity | Value |
|---|---|---|---|---|
| S | Double Denomination | Front/back are DIFFERENT denominations | Extremely Rare | $10K-100K+ |
| S | Blank Back | Back completely blank — missed 1st print | Rare | $200-1.5K+ |
| S | Blank Front | Front blank, only back printed | Very Rare | $300-2K+ |
| S | Butterfly / Foldover | Note folded during printing — partial design on wrong side | Very Rare | $200-2K+ |
| S | Inverted Back | Back printed 180° upside-down vs front | Very Rare | $200-1.5K+ |
| S | Printed Fold | Sheet folded over during printing — dramatic extra design | Rare | $200-2K+ |
| S | Double Printing | Fed through press twice — doubled image | Rare | $100-1K+ |
| A | Mismatched Serials | Two serial numbers on same note don't match | Rare | $100-500+ |
| A | Overprint on Back | Seals/serials printed on wrong side | Very Rare | $100-1K+ |
| A | Inverted Overprint | Third printing (seals/serials) upside-down | Rare | $100-500 |
| A | Third Print Missing | No serials, seals, or FRB numbers | Rare | $100-500 |
| A | Missing Back Print | Back underprinted or mostly missing | Rare | $100-500 |
| A | Offset Printing | Ink transferred from plate to blanket to note — ghost image | Uncommon | $50-500 |
| A | Wrong Planchet/Paper | Printed on wrong paper stock | Very Rare | $200-2K+ |
| A | Board Break | Horizontal blank stripe from cracked plate backing | Uncommon | $50-300 |
| B | Misaligned Printing | Off-center or shifted — next note's design visible | Common minor | $5-200 |
| B | Cutting Error | Miscut — uneven margins or part of adjacent note showing | Uncommon | $25-300 |
| B | Gutter Fold | Blank stripe from paper wrinkle during printing | Uncommon | $25-200 |
| B | Obstruction Error | Material (tape, clip, paper) blocked ink | Uncommon | $30-300 |
| B | Ink Smear | Excess or missing ink, smears, blotches | Uncommon | $10-150 |
| B | Solvent Smear | Chemical smear causing ink to spread/dissolve | Uncommon | $15-100 |
| B | Insufficient Inking | Faded or ghost-like print from low ink | Uncommon | $20-200 |
| B | Wet Ink Transfer | Mirror image from wet sheet touching another | Common | $10-75 |
| C | Stuck Digit | Serial digit stuck, rotated, or partially inverted | Uncommon | $20-100 |
| C | Mismatched Block Letter | Prefix/suffix letters don't match standard pairing | Rare | $25-150 |
| C | Faulty Alignment | Slight front/back misalignment | Common | $5-50 |
| C | Paper Jam Error | Crumpled during printing | Uncommon | $20-150 |
Fancy Serial Number Patterns
Serial number patterns that make ordinary bills collectible. Check your wallet!
| Tier | Pattern | Example | Description | Value |
|---|---|---|---|---|
| S | Solid | 88888888 | All 8 digits identical | $500-5K+ |
| S | Full Ladder | 12345678 | 8 sequential ascending | $300-3K+ |
| S | Full Descending Ladder | 87654321 | 8 sequential descending (scarcer!) | $600-4K+ |
| S | Super Repeater | 31313131 | 2-digit pair × 4 | $100-500 |
| S | Super Radar | 30000003 | Palindrome + solid middle | $100-1K |
| S | Ultra-Low Serial | 00000005 | Serial under 100 | $200-5K+ |
| S | Serial #1 | 00000001 | The holy grail of serials! | $700-4K+ |
| S | Million Note | 10000000 | Exact million (X0000000) | $200-1K+ |
| A | Seven-of-a-Kind | 22222282 | 7 of 8 same digit | $75-500 |
| A | Radar | 12344321 | Same forwards/backwards | $20-200 |
| A | Repeater | 45674567 | First 4 = last 4 | $25-150 |
| A | Double Quad | 44449999 | Two groups of 4 identical | $50-300 |
| A | Very Low Serial | 00000500 | Serial 100-999 | $50-500 |
| A | Ultra-High Serial | 99999950 | Near maximum (99999900+) | $50-300 |
| A | Seven-in-a-Row | x7777777 | 7 consecutive same digit | $50-400 |
| B | Six-of-a-Kind | 55255555 | 6 of 8 same digit | $20-100 |
| B | Binary | 10100101 | Only 2 different digits | $5-50 |
| B | True Binary | 01101001 | Only 0s and 1s | $40-150 |
| B | Star Note ★ | B12345678★ | Replacement note — check run size! | $1-500+ |
| B | Low Serial | 00005000 | Serial 1,000-9,999 | $10-50 |
| B | Double Digits | 33557799 | AABBCCDD pattern | $10-50 |
| B | Partial Ladder | xx234567 | 6+ digits sequential | $5-30 |
| C | Trinary | 31133113 | Only 3 different digits | $2-10 |
| C | Quad | xx5555xx | 4+ consecutive same digit | $2-10 |
| C | Bookend | 23xxxx23 | First 2 = last 2 digits | $2-10 |
| C | Birthday | 07041776 | Date MMDDYYYY format | $2-20 |
| C | Trailing 000s | 12345000 | 3+ trailing zeros | $2-10 |
| C | $2 Bill (any) | — | Uncommon denomination — always worth checking | $2-20+ |
Star Note Production Runs
103 replacement note runs tracked · 20 rare runs (under 250,000 printed). Star notes with low production runs are more collectible.
$1 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2021 | A | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2021 | A | 2 | 03200001-06400000 | 3,200,000 | PACK | |
| 2021 | B | 1 | 00000001-00500000 | 500,000 | SHEET | |
| 2021 | D | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2021 | F | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2021 | G | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2021 | G | 2 | 03200001-03840000 | 640,000 | SHEET | |
| 2021 | I | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2021 | I | 4 | 09600001-09850000 | 250,000 | SHEET | Very low run! |
| 2021 | J | 1 | 00000001-00250000 | 250,000 | SHEET | Very low run! |
| 2021 | K | 5 | 12800001-13050000 | 250,000 | SHEET | Very low run! |
| 2021 | L | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | E | 1 | 00000001-00250000 | 250,000 | SHEET | Very rare! |
| 2017A | F | 6 | 16000001-16250000 | 250,000 | SHEET | Very rare! |
| 2017A | G | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | J | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | K | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | L | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017 | A | 3 | 06400001-06425000 | 25,000 | SHEET | ULTRA RARE - only 25,000! |
| 2017 | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017 | E | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017 | F | 1 | 00000001-00250000 | 250,000 | SHEET | Very rare! |
| 2017 | I | 1 | 00000001-00250000 | 250,000 | SHEET | Very rare! |
| 2017 | J | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2013 | B | 1 | 00000001-00250000 | 250,000 | SHEET | DUPLICATE SERIAL RANGE - DC/Fort Worth! |
| 2013 | B | 2 | 03200001-06400000 | 3,200,000 | PACK | DUPLICATE RANGE |
| 2013 | F | 4 | 09600001-09700000 | 100,000 | SHEET | ULTRA RARE - 100K, possibly unreleased |
| 2013 | I | 1 | 00000001-00250000 | 250,000 | SHEET | Very rare! |
| 2013 | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2009 | A | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2009 | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2009 | I | 1 | 00000001-00032000 | 32,000 | SHEET | ULTRA RARE - only 32,000! |
| 2009 | J | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2009 | K | 1 | 00000001-00640000 | 640,000 | SHEET |
$2 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2017A | K | 1 | 00000001-00640000 | 640,000 | SHEET | $2 star — always collectible |
| 2017A | L | 1 | 00000001-00640000 | 640,000 | SHEET | $2 star! |
| 2013 | B | 1 | 00000001-00640000 | 640,000 | SHEET | $2 star! |
| 2013 | F | 1 | 00000001-00640000 | 640,000 | SHEET | $2 star! |
| 2013 | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low $2 star! |
| 2013 | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2013 | L | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $2 star! |
| 2009 | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $2 star! |
| 2009 | K | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $2 star! |
| 2009 | L | 1 | 00000001-00640000 | 640,000 | SHEET | $2 star! |
$5 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2021 | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2021 | D | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2021 | G | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2021 | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2021 | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | F | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | L | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2013 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
$10 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2017A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | F | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | G | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | K | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | L | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017 | B | 1 | 00000001-01280000 | 1,280,000 | PACK | |
| 2017 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $10 star! |
$20 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2017A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | E | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | F | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | G | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | L | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017 | B | 1 | 00000001-01280000 | 1,280,000 | PACK | |
| 2017 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $20 star! |
$50 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2017A | B | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | F | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | G | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $50 star! |
| 2017A | K | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2017A | L | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low run! |
| 2013 | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $50 star! |
$100 Star Notes
| Series | FRB | Run | Range | Size | Type | Notes |
|---|---|---|---|---|---|---|
| 2017A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | E | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | F | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2017A | G | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | I | 1 | 00000001-00320000 | 320,000 | SHEET | Low $100 star! |
| 2017A | K | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2017A | L | 1 | 00000001-00640000 | 640,000 | SHEET | Low $100 star! |
| 2013 | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2013 | E | 1 | 00000001-00320000 | 320,000 | SHEET | Low $100 star! |
| 2013 | I | 1 | 00000001-00128000 | 128,000 | SHEET | Very rare $100 star! |
| 2009A | B | 1 | 00000001-03200000 | 3,200,000 | PACK | |
| 2009A | E | 1 | 00000001-00640000 | 640,000 | SHEET | |
| 2009A | L | 1 | 00000001-00640000 | 640,000 | SHEET |
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