Inert WWII German 3.7mm PAK Anti Tank Round

This is a Second World War dated German 3.7mm PAK 36  Anti Tank armourer piercing shell. The makers codes on the base of the shell are "awj" = The Yale u. Towne Manufacturing u. Company, Velbert, and "aux" = Polte-Werk, Magdeburg. The projectile is dated 1937 and carries Waffen acceptance WaA352. The PAK 36 was main anti tank field gun used by the German army during WWII.