The serial # looks to read 108669 but it's hard to read with my eyes the 66 are very close together, almost overlapping.
According to Colt website it might have been made in 1919.
There is a T under the # which I believe to be a stamp from an inspector.
I will try to get better pics of everything but my phone wouldn't focus on the serial # and all I have is my phone cam.
Makes me want to go find some old antique firearms lol.
Also, my apologies with the pictures. As you can see I figured out how to add them. I'm sure I can get them all in one post as well in the future
Obviously I'm new here but I'm used to forums that do the dirty work for you.