Today in WW II: 26 Aug 1940 No. 1 Fighter Squadron, Royal Canadian Air Force [RCAF] engages German bombers over southern England, the first RCAF combat.  

WC-55 Truck, 3/4 ton, 4x4 Gun Motor Carriage Dodge (G502)

The 3/4 ton Dodge WC-55 Gun Motor Carriage was manufactured by Dodge during 1942, as the platform for a temporary solution to the need for an anti-tank weapon. A 3/4 ton WC-52 Weapons Carrier was modified by mounting a 37mm M3A1 anti-tank gun along with other equipment and small changes. The combined weapons carrier and anti-tank gun were designated the M-6 Gun Motor Carriage (GMC).

Visit the linked page for photos and more information about the M6 GMC.