1911 barrel markings

[c-j]

IMG_20150307_204645861.jpgWhat do I have here?
The marking on the barrel hood is a R

IMG_20150306_241904629.jpgIMG_20150305_233327021_HDR.jpgIMG_20150305_233211760_HDR.jpgIMG_20150306_241626784.jpg

[stan4]

What do I have here?
The marking on the barrel hood is a R

[ATTACH=CONFIG]30105[/ATTACH][ATTACH=CONFIG]30106[/ATTACH][ATTACH=CONFIG]30107[/ATTACH][ATTACH=CONFIG]30108[/ATTACH]

c-j,

I would have to get a better look at the R, (and the rest of the barrel).

My WAG, with the pictures provided, is 1916 military.

Best Regards,

[Johnny P]

What would account for the R instead of the expected S on a 1916 barrel?

[stan4]

A mistake. There are other than the expected S on 1916 barrels. Could be the inspector thought it was a H.?

What do you think it is?

[Johnny P]

I don't know what it is, but with only the P on the top of the chamber I would have expected an S on a 1916 Colt barrel. What are the others on a 1916 barrel with the P on the chamber?

[stan4]

I also do not know. I would also expect an S --- with the P on top of the chamber. I have not examined a H --- with the P on the chamber. (We know there is a H --- with the P on the back of the lugs.) If it is a mistake, it could a mistake of the S (as well as a mistake of a H).? How many different barrels would be correct for a 1916 M1911?

I was not sure it was a R, but the new picture clears that up. Have you seen this R used before? Do you think it is a Colt barrel?