Originally Posted by
JBC353
The date code on the right drop out is G1283, so December of '83. It was probably late enough to be built out as an '84.
The bike build date can be found on the headbadge in the form of a 4-digit number (dddY) where ddd represents the ordinal day and Y represents the last digit of the year. For example 1234 would mean the bike was built on the 123rd day of '84, which was
Wed. May 2nd, 1984.