Hi Chris,
I understand so and having collected for nearly forty years, I have not seen them before and I guess perhaps they are quite rare and not known that well. Mick Prodger has obtained items from myself that he has never seen before, which were genuine Luftwaffe Service Issue. His books albeit Excellent, do not cover everything that was produced.
I was working in Aberdeen at the time I obtained these goggles. The gentleman told me his father had had them sat in a draw for many years. His son was not a collector and I recall he worked offshore.
I have just been informed there are some for sale on German Ebay, but not complete. Quite a coincidence really.
http://www.ebay.de/itm/Original-Schu...item4640c27cd9
Kind Regards