This is my late model Colt 1871 Open Top with an Army size grip. Still in original .44 Henry Stetson. In very good condition, with “stretched” barrel.
The one I have a letter on (474x) was sold and shipped to JP Moores & Sons, Sept. 24, 1874 w/25 others. I do believe that a lot of these wound up in Mexico due to the henry cartridge being popular down there. I would bet a few '66 carbines went that way too.The assumption has been for years that most of these went to Mexico. Did your letter reflect that?