Thanks! I do have that book and as you note, serial numbers are confusing. I'll try counting serrations.
This particular pistol came with original but post war Browning ivory Franzite grips.
I'm in the process of rust bluing the pistol and have purchased some nice walnut grips. It will be a shooter and something I may pass on to a grandson.
Thanks for the tip on the Ortgies.
I'll always thought the most important safety was the one between your ears.