Tantalising your timing co-insides with a similar badge selling on eBay recently for £26.04. It was not in my opinion a genuine WW2 badge, but I’m no expert.
https://www.ebay.co.uk/bfl/viewbids/...063bbbfffe14e7
I cannot comment on Shaun’s badge nor do I know what lou means.
I’m sure the LRGD gurus will be along to confirm or allay.