[Ruy Dias de Bivar]

Is it in Colt .38 long or S&W .38 special?

[riverrunner]

My colt book shows a page from a 1905 catalog showing it was offered in 38 colt and 38 spl. at that time.

There was a 38 colt short 38 colt long and then 38 S@W spl

Then to confuse things more the 38 S@W that has a bit different case Dia.