Amoskeag contract Special Model 1861 Contract Rifle - 27,001 made in Manchestor. Lock marked U.S./AMOSKEAG M Co/MANCHESTER, N.H. with an eagle motif. Made 1862-1865. Based on a design by the Colt company, and that design was patterned after the British Enfield. .58 caliber. 40" barrel. Three barrel bands. Steel ramrod with tulip shaped end. This is not to be confused with the "regular" Model 1861 Rifle-Musket, which is a completely different model.
Lindner Carbine - made by Edward Lindner, probably at the Amoskeag company works. Approximately 6500 made. .58 caliber breechloader. First Type: 501 made under contract to the U.S. Government. No sling ring. Second Type: Has sling ring on trigger guard. Longer forestock. Most of the Second Type are thought to have been sold to France, and are much scarcer, even though more were produced. 6000 of the Second Type had been refused by the U.S. Governmnet, resulting in a court battle.
In addition, 100 Robbins & Lawrence Model 1841's were converted to breechloader by Allen & Morse (Boston, Mass.) in 1861 for the State of Mass., using the Lindner Conversion method. Also, three specimans were altered by Amoskeag.