Nice old Colt. I remember when arsenal-refinished 1917s were fairly common on the market; evidently quite a few were done during the WWII period, and actually used by the services. In the late 1960s I bought one similar to yours. I mistakenly believed that it didn't have much collector value as a refurb, so I sold it somewhere along the way. Now, I would recognize it as an example of the period when we were scrambling to put almost any old 1911/1911A1/1917 back into service. You do have a piece of history there.
Nice pics, by the way.
John