Clive: The book arrived safe and sound in this mornings mail. Thanks so much also for the catalog. I have already flagged some extra reading items. Of course, that was your plan, wasn't it!
Roger: Very interesting read on the Inglis 20mm. It reaffirmed my feelings the Hispano was clearly the superior ammunition, but the fact the British Army was so heavily invested in the cheaper, simpler (?) Oerlikon design, the Inglis was doomed. Can't help but think, however, that if the belt feed had gone into production and the Canadians could have floated the costs for putting into production for their own use, this item would have had a long, successful lifespan. Pity some clown scrapped all the items in storage. I guess that means no complete examples ever survived.
David