[David_Hayward (RIP)]

As mentioned before, the 20 mm gun mounting was designed by Vauxhall Motors Limited and mounted originally on the Bedford MW. The prototype was converted MW Z 41810?50, from the batch Z 4176716 TO 4183115, Contract T.8957. The Ministry of Supply asked Vauxhalls in June 1942 to work with the War Office Armaments Design Department. The Experimental Department in Luton produced the first 100 mountings for Allied and Dominion Governments. As you know, Vuxhalls then worked with Dennis in Guildford to convert Chev and Ford Van CMPs to the Light AA version. I assume that the War Office then sent drawings and samples to Ottawa for Ford and GM of Canada.