Developed by Rheinmetall-Borsig in the mid 1930s, the Model 36 was intended to be more mobile than other, heavier mortars while still giving infantry a range advantage over thrown or rifle-launched grenades. The launch tube is fitted with a spring-loaded firing mechanism, with "R21478/Sg 2675 Rl 489a RhM380/Fl748 acv 1941" next to a pair of Waffenamt stamps, and "acv/1941" repeated on the mechanism housing; "acv" has not been identified. The baseplate is marked "bcd 42" (Gustloff-Werke), and fitted with a combined traverse and elevation mechanism, with a range indicator graduated from "0" to "500", a spirit level, and spikes on the underside. One inert round is included.

Very fine, with 70% of the original blue finish, showing areas of brown patina, wear and handling marks. The spirit level is unbroken, the traverse and elevation hardware runs smoothly, and the firing mechanism appears to be in good order. NOTE: This Destructive Device is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.