Ordnance provision system. [Ordnance catalog (ordnance provision system): Groups A-T. F-223. Mount, telescope, M30 (for 240 mm howitzer carriage M1 and 8″ gun carriage M2), extension, for mount, telescope, M30, adapter, quadrant, M10 (for elevation quadrant M1), list of all parts; Aug. 3, 1943.