1 Digit Month Designation Follow
Has anyone used a single digit to designate the month in a serial number? I think this would be like a base 12 numbering system that uses "C" for December and resets back to a 1 in January.
The serial number format is MYYXXXX (9150001).
M = month
YY = 2 digit year
XXXX = 0001 (incrementing 4 digit base 10 serial number).