Collectable Serial Types

Collectable serial types are another factor towards banknote collecting, where the more unique a serial type is generally will increase the desirability of the banknote.

Please leave a comment at the bottom of this page if you would like me to include a collectable serial type not currently being checked.

A list of collectable serial type used within GBP Banknote Checker Tool are found below:

  • Binary
  • High Number (Single)
  • High Number (Double)
  • High NUmber (Triple)
  • Ladder (Ascending)
  • Ladder (Descending)
  • Low Number (Single)
  • Low Number (Double)
  • Low Number (Triple)
  • Radar
  • Repeater (2/2/2)
  • Repeater (3/3)
  • Semi-Solid (3/3)
  • Semi-Solid (4/2)
  • Semi-Solid (5/1)
  • Solid
  • True Binary
  • Binary
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 2,728x Notes
    EXAMPLE: 774474
    INFO: A serial number that consists of only 2 unique digits.
    High Number (Single)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 10x Notes
    EXAMPLE: 999997
    INFO: A serial number that is within the serial range 999990 → 999999.
    High Number (Double)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 90x Notes
    EXAMPLE: 999925
    INFO: A serial number that is within the serial range 999900 → 999989.
    High Number (Triple)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 900x Notes
    EXAMPLE: 999165
    INFO: A serial number that is within the serial range 999000 → 999899.
    Ladder (Ascending)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 5x Notes
    EXAMPLE: 234567
    INFO: A serial number where each digit increases by 1 from the preceding digit.
    Ladder (Descending)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 5x Notes
    EXAMPLE: 876543
    INFO: A serial number where each digit decreases by 1 from the preceding digit.
    Low Number (Single)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 9x Notes
    EXAMPLE: 000003
    INFO: A serial number that is within the serial range 000001 → 000009.
    Low Number (Double)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 90x Notes
    EXAMPLE: 000042
    INFO: A serial number that is within the serial range 000010 → 000099.
    Low Number (Triple)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 900x Notes
    EXAMPLE: 000842
    INFO: A serial number that is within the serial range 000100 → 000999.
    Radar
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 999x Notes
    EXAMPLE: 157751
    INFO: A serial number that consists of 2x 3 digit blocks, where each block is mirrored.
    Repeater (2/2/2)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 90x Notes
    EXAMPLE: 151515
    INFO: A serial number that consists of 3x 2 digit blocks, where each block is identical.
    Repeater (3/3)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 900x Notes
    EXAMPLE: 148148
    INFO: A serial number that consists of 2x 3 digit blocks, where each block is identical.
    Semi Solid (3/3)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 90x Notes
    EXAMPLE: 333777
    INFO: A serial number that consists of 2x blocks of 3 digits, where each block only contains 1 unique digit.
    Semi Solid (4/2)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 180x Notes
    EXAMPLE: 337777 or 777733
    INFO: A serial number that consists of 2x blocks, one block of 2 digits and 1 block of 4 digits, where each block only contains 1 unique digit.
    Semi Solid (5/1)
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 180x Notes
    EXAMPLE: 377777 or 333337
    INFO: A serial number that consists of 2x blocks, one block of 5 digits and 1 block of 1 digits, where each block only contains 1 unique digit.
    Solid
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 9x Notes
    EXAMPLE: 444444
    INFO: A serial number that consists of only 1 unique digit.
    True Binary
    ★★★★★
    ☆☆☆☆☆
    OCCURANCES: 62x Notes
    EXAMPLE: 110010
    INFO: A serial number that consists only of the digits ‘0’ and ‘1’.

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