Normal
Tenth digit is the year. They never used a 0 or an O so you have you numbers off."A" would be 80 and then up to "H", as "I" was not used, but "1" was in 200"1", then is was numbers up to 200"9", and then back to letters again.
Tenth digit is the year. They never used a 0 or an O so you have you numbers off.
"A" would be 80 and then up to "H", as "I" was not used, but "1" was in 200"1", then is was numbers up to 200"9", and then back to letters again.