Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935Ariel Square Four 600cc OHC 1935