Early optical sights for the Lee Enfield

[Strangely Brown]

As for Voigtlander, is the Kontur bifocal viewfinder not a post-WWII product? I can't see it playing any role in a design from 45 years earlier.

I cannot find any online reference at the moment but I'm sure an earlier version was often seen on pre war Bessa 6x9 cameras along with the usual albada viewfinders of the period.
Voigtlander were reborn after ww2 with new and some old rebranded products; ironically the British army captain put in charge of rebuilding the business lived in my city of Salisbury, sadly this was unknown to me until his son came into the shop one day to sell his late fathers cameras. I would have loved to have questioned the man about his involvement with Voigtlander.

After I left the army in 1974 I spent the next 42 years dealing with vintage & classic photographic equipment, when I retired to a full time life with Lee Enfield's I gave away all my camera reference books!