Inert WWII German 20mm Flak 30/38 round

This is a WWII German 20mm cannon cartridges developed by Solothurn in the 1930s, and is known as the Long Solothurn round .It was used in a variety of roles by the Nazi's. Its main use was with the Flak 30 and 38 Anti Aircraft guns but was an effective and deadly ground weapon. This is an armour piercing round. The brass case is dated 1936 with the correct Nazi makers mark and codes, and Nazi Waffen acceptance stamp WaA238.The projectile is maker marked "czs" = Brennabor Werke AG, Brandenburg and dated 1943.