Developed by the British during WWI, the Hotchkiss Portable Machine Gun was produced in two models with two versions; a Tank and Calvary version. The Tank version was produced without a buttstock and instead has a small brass pistol grip. These were intended to be mounted either as a coaxial gun or on top in a pedestal mount. The Calvary version actually used a short buttstock and was mounted on the "tripod" that is included with this lot. The two models that were produced was the MK I and the MKI*. The first model could only use feed strips with the cartridges loaded in the strips, while the second model, the MKI* could use either the feed strips or a belt of ammunition. The side of the receiver is marked: "HOTCHKISS PORTABLE MACHINE GUN. MKI*/PATENTED CALIBER .303/No E.28971". The top cover is correctly marked "BELT OR STRIP FEED". The rear of the receiver is also stamped with the matching serial number on the bolt cover and the barrel is marked "A/21505", which probably indicates an arsenal modified or updated barrel. It is fitted with offset sights with an inverted "v" front and a tangent rear sight graduated from "00-20" (100-2000 meters), and a second brass tripod lug is installed ahead of the gas port. The buttstock is steel construction with a hinged shoulder rest and hardwood covers. The tripod is marked "MOUNTING TRIPOD/303 INCH. GUN/HOTCHKISS" and "TYERS/1917", and the various components having the British Broad Arrow proof. Also included is an extra barrel and a set of six loading strips. Included paperwork indicates it was overhauled at the Ohio Ordnance Works in 2015.