bucksaw wroteThe headstock cases I bought off eBay for replacement came with the newer medallion style with the spring as pictured . I left the old medallion with the old case in case I ever use it again.
Does anyone know what year the medallion access hole was added to the headstock casing? I'm curious.
Even narrowing the question down further, what year / month.
judapre1982 SN is 303185, which means it was made between Aug/Sept 1955 and has
NO access hole.
My SN 309828 Oct/Nov 1955 production run
HAS the access hole.
Assuming we both have original headstock castings, this would say that the access hole was added somewhere very close to 3rd quarter 1955.