Files from the Ministry of Supply (otherwise in SUPP) Branch Registry systems covering functions transferred to the War Office in 1959. Files deal with aspects of the supply of arms and equipment to the army, the Royal Ordnance Factories, and the export of arms.
Some files from AVIA 22, AVIA 46, AVIA 49, AVIA 50, AVIA 51, AVIA 52, AVIA 53, AVIA 54, AVIA 55, AVIA 56, and AVIA 57 (the 1-12 series) were re-registered in this series.