MGF / TF roll hoops

I have been wanting some for protection and peace of mind in my road / hillclimb & sprint Trophy but when I researched them struggled to find anything other than cosmetic or x-part hoops.



So I was surprised to come across these in the autojumble at the MG-Triumph Spares day on Sunday











Does anyone recognise them and know the origin or manufacturer? They appear extremely well made, only identification I can find is N64 8114 stamped on one of the brackets.



How well they fit has yet to be determined - the Trophy is in dry storage for winter but I will be bringing it home in the next week or so and will report back then!

from the last news http://ift.tt/1ByHT8i

via IFTTT