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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):
(Photograph credits: Nestor Lugo)
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: Maiker Carmona. This piece also is Binary serie, Bookend serial number (2 digits), Bookend serial number (3 digits), Bookend serial number (4 digits), Radar serial number, Repeater serial number (2 digits) and Solid serial number)
See also: Fancy serial number
