This is a VERY NICE example of a 100% INERT WW2 German Wehrmacht/Luftwaffe 30mm MK108 Steel Shell, as by various Aircraft and AA Mounts!
The MK 108 (German: Maschinenkanone—”machine cannon”) was a 30 mm caliber auto-cannon manufactured in Germany during World War II by Rheinmetall‑Borsig for use in aircraft.
Made of solid steel, this is a FANTASTIC piece of history! Completely inert, there are some slight wear and marks, however it remains VERY SOLID with various marking throughout. Would make a PERFECT addition to any collection or display!
Please note that I have many other examples not listed, please contact me for specific requests.