This rifle presents itself as an anomaly in having a triangular sliding ramrod bayonet in the form of the rare Model 1882 experimental rifles now with square locking holes as opposed to round holes on the Model 1880 that precedes it and with no projecting ears on the sides of the bayonet retaining spring, and it does not have the friction fit breech block found in the Model 1882. The serial number of this rifle places it inside the accepted Model 1879 range of 100000-280000, after the 1,001 Model 1880 experimental ramrod rifles in the 154000-158000 range, but before the 52 Model 1882 experimental short rifles in the accepted 197000-199000 range. The serial number "187796" has a star marked to the right of it, which is typically attributed to rifles that have gone through an arsenal rebuild. This was likely built as a one-off experimental trial piece with the improved bayonet system. Initials "JG" (possibly John Greer, Captain of Ordnance) marked on the left of the rear barrel band. "U.S./MODEL/1873" marked low arch breech block. Faint boxed script "SWP/1881" (Samuel W. Porter) inspection cartouche on the left of the stock. "GDM" (George D. Moller) collection initials marked at the toe of the stock. Model 1880 buttplate with compartment containing a Model 1879 combination tool and shell extractor tool. Includes leather sling. Provenance: The George Moller Collection