Handbook of the 40 mm. 2 Ponder Automatic Gun. Marks B* & C*. (Ordnance Q.F. 2 Ponder Marks I & II. No. 53400 G - … Supplement no.3 to Army/Air Operations Pamphlet no.4. (Chapter 3). Carriage of Artillery. Equipment bij Air. Section 6, Q.F. 17 Ponder, Mark 1 Gun on Carriage …