Physical description

Two alloy ammunition cartridges from a 30mm DEFA (Direction des Études et Fabrications d'Armement) revolving gun used in aircraft. According to the markings on these cartridges, they were manufactured by the Munitions Factory in Footscray Vic. in June 1971. They were most likely used in the guns of the Mirage aircraft of the RAAF.

Inscriptions & markings

30-550-DEFA, 6MF71, FR on base. 30-550-DEFA AP 5401MEM and some illegible marks on the side.