I recently got hold of a group of material from a member of the First Brigade New York State Horse Artillery. The material belonged to Alfred M. Davis of Suffolk County, who was a member of the Second Regiment of Horse Artillery. According to entries in the NY legislative records this was a unit drilled and equipped as cavalry, but liable to service as horse artillery. The group consists of Davis's dragoon style helmet, his sword belt and plate, 1796 British style saber and scabbard, a pair of flintlock pistols by Sharpe, and a pair of pommel holsters by Dingee. Most interesting, though, is the original bill of sale for these items made out to Davis by HJ Storms of NY City dated 1842.
I'll start off by posting some photos of the helmet. O'Donnell and Campbell illustrate a very similar helmet with an HJ Storms label still in it, and they show several versions of the helmet plate, which is a brass version of the US 1812 dragoon plate, utilizing a mounted husssar instead of a dragoon (along with several other differences.)
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