Sadly no closer, despite the great pics Inkworm gave me the heads-up on in this month’s ‘other’ magazine. They all show the ‘flat’ type, not a surprise considering the date.

I have come to realise that there was an intermediate ’rounded’ type, sometimes armoured, sometimes not (but without the additional frame component familiar on Battle of Britain aircraft) that both appeared and disappeared in the first half of 1940, but I cannot find any documentation on (or even record of) its existence anywhere, apart from one GA drawing and a few blurry battle of France period photographs.

Another example is below, with the more familiar early screen as an inset for comparison.

Help