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Date or Birthday serial number
A banknote with 8-digits serial number that when it's read represent a date. These piece can be valuable to a collector based on an special date (aniversary, birthday, etc). The date have the following formats:
- YYYYMMDD: 4 digits year, 2 digits month and 2 digits day. Example: "20110509"
- DDMMYYYY: 2 digits day, 2 digits month and 4 digits year. Example: "05092011"
- MMDDYYYY: 2 digits month, 2 digits day and 4 digits year. Example: "09052011"
Example of Birthday serial number (year-month-day):
Example of Birthday serial number (month-day-year):
(Photograph credits: Nestor Lugo)
Example of Birthday serial number (day-moth-year):
(Photograph credits: Nestor Lugo)
See also: Fancy serial number
Doubles serial number
A banknote with a serial number that contains pairs of same digits, for example "
11223344"
.
Example of Doubles serial number:
(Photograph credits: Nestor Lugo. This piece also is 6 digits in-a-row serial number, Binary serie and Low serial number level 4)
See also: Fancy serial number
