Xlobsterman
Cruisin' on my Bluebird
The one thing about headbadges, is they are not absolute, since they can be removed and changed out because of the screws! But that is an interesting gap between the serial number and head badge code on the bike in the pic. And another interesting point is that I don't see a King Sting listed in the 83 catalogs, only in 81 & 82.
When I was building custom bikes back in the day, we swapped out lots of headbadges to match the colors of the accessories we put on the bikes. But in saying that, those headbadges did not have date codes on them.