off Ebay
S&W Journal #24, vol 3&4, page 19 has a list of the non-reg magnum serial numbers. It just turned out to be one. The grips did come from the correct geographical area. If no one shows up, I'll probably have DWFan work 'em over.
I have 61067 that shipped to KCPD, January 30, 1940, unfortunately, the grips aren't numbered to the gun
Ned