Excellent stuff. I hadn’t realised that Mk IVs never got the appliqué armour. One minor quibble: you say of the Mk VII “The biggest improvement was in terms of armour-protection, which was comparable to that of the Tiger I.” I’d have said it was considerably better, and comparable to the frontal protection of Panther. The earlier marks of Churchill were almost as good as the Tiger I. All the best, John.
I’m not sure about the applique armour for Mk IVs. The only Mk IVs I’ve seen it applied to are Mk IV NA75s. Like the Mk III example shown, there were probably exceptions.
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