David, welcome to the forum!
Is it all matching? To include the firing pin and maybe the grips? Do the two magazines match the serial number or different numbers?
Does it have a suffix on the front of the frame just under the serial number?
Pictures help immensly, as it can show a reblue (collector value gone) or other things we might spot and that you don't know
A 1945 holster sounds interesting, as I don't think a lot were made?
Ed