Scott Gahimer
10-20-2013, 09:57
In March 1913, proof ammunition was first received at Colt and began being used to proof test barrels. Mr. Clawson states the first barrel test was for pistol s/n 24251. This pistol, s/n 24279, is one of the very first pistols to have a proof tested barrel.
These first proof tested barrel are marked in a unique fashion. The H is on top of the chamber and the new "P" proof mark is applied to the back side of the barrel hood extension. By about s/n 25000, the "P' was moved to the top of the chamber, thus introducing the horizontal P H barrel.
This pistol was carried, but appears to have not been used too much.
http://i44.tinypic.com/e9jm8h.jpg
http://i41.tinypic.com/294rzux.jpg
http://i44.tinypic.com/spc60y.jpg
http://i41.tinypic.com/344bf2a.jpg
http://i40.tinypic.com/w2j914.jpg
These first proof tested barrel are marked in a unique fashion. The H is on top of the chamber and the new "P" proof mark is applied to the back side of the barrel hood extension. By about s/n 25000, the "P' was moved to the top of the chamber, thus introducing the horizontal P H barrel.
This pistol was carried, but appears to have not been used too much.
http://i44.tinypic.com/e9jm8h.jpg
http://i41.tinypic.com/294rzux.jpg
http://i44.tinypic.com/spc60y.jpg
http://i41.tinypic.com/344bf2a.jpg
http://i40.tinypic.com/w2j914.jpg