The only thing I can think of, so I dug out the article is in the 2001 Guns & Ammo Handguns. I found a article by Leroy Thompson about J.E. Bill Decker Sheriff of Dallas county Texas years ago. In 1940 his friend ordered him a pair of engraved Colt national match45's with the trigger guards removed, This seemed to be a custom touch on guns in the early days. Other special touches are one eighth inch front sights and both triggers set to five pounds. Also custom grips of coarse. Deckers car led the motorcade when President Kennedy was assassinated.