The grouping includes six documents total, all of which pertain to the Colt Patent Firearms Manufacturing Company. The first letter, dated 9 August 1859, is from the Chief of the Bureau of Ordnance and Hydrography (U.S. Navy), and is a request for 100 of Colt's rifles to be sent to the Washington navy yard that are "similar in all respects to the one recently tested by a Board of Officers at that yard." This letter is addressed to Col. Samuel Colt, and is undoubtedly a reference to the Model 1855 revolving rifle. Two of the letters, dated 1874 and 1876, are correspondence on Colt letterhead with Adams Nickel Plating & Mfg. Co. of South Windham, Connecticut, that appear to pertain to the outsourcing of nickel plating firearms parts by Colt. Another document appears to be a brief note on shipping. Another letter on Colt letterhead, dated 12 October 1861, is addressed to James Savage Esq. of the U.S. Commissary Department, and is a reply to a note by him that appears to be requesting Colt rifles that can accept a bayonet, which may be the Model 1861 Special rifle-musket produced by the company. Also included is a Colt advertisement pamphlet from around the same period as the other documents, which is printed on blue paper.

All of the documents are fine or better with distinct markings and very minimal wear.