Probably, Malcolm - the early-issue 'A' Barrel of the 20-pdr had not fume extractor, whereas both the 'B' barrel and the 105 mm did have a fume extractor fitted (but with different 'looks': the 20pdr had round ededges and concentric to the barrel, the 105 had squared edges and was eccentric).
I suspect, though, that what we are seeing is a Mk11 LR with a 20-pdr barrel fitted. Maybe the museum could locate an L7 105-mm barrel and do a swap?
I'll likely be in your area in November, (considering heading to a history conference at RMC Kingston): maybe I can drop by for a peek?
Mike
Last edited by Mike Cecil; 22-07-18 at 06:56.
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