Green (British Type) Carbine, .54 cal. percussion carbine.  Serial #1893, mfg. 1855 by Massachusetts Arms Co., Chicopee Falls, USA.  Excellent original condition.  A rare Massachusetts Arms carbine that was first produced in the USA for the British Empire in 1855 for the Crimean War, but sold surplus to the Union forces during the Civil War. Few have survived (see p. 622 in "Flayderman's"). 18” barrel has excellent heavy rifling, correct sights and beautiful deep blue.  Unique side-twist breech block mechanism has beautiful original blue with some fine surface corrosion.  Mechanism works perfectly.  Lock plate has crisp address markings and British crown stamping with Maynard tape priming system.  Stock hardware is all correct.  Butt stock of dark walnut is excellent.  Lock works fine.  Only 2000 ever made, but less than 200 survived and many in bad shape – so this excellent specimen is hugely rare and desirable Civil War-era Calvary carbine – the first we have ever seen!  A great find for the advanced Civil War collector!   Will front run any Civil War carbine collection! Museum quality! Antique, can ship to your door.