Texas Crystals, Crystek, Jan, and others often reworked WWII
military surplus FT-243 crystals to customer specs. They either
replaced the original front plate with a new one--with their
company named embossed, or they simply used a stick on
label to cover the original faceplate marketings. The bakelite
housings still have the tell tale military channel numbers
embossed on them, however--a dead giveaway regarding
their original.. I post my examples on the binaries, and email
cc to Bill.

Pete