Credaplan
Al
It may even be a bit later than mid 70's, the oven door pattern is the same as on my Aunts 40073 Carefree, purchased in late 79 early 80 to replace an original Carefree from the early 50's.
I'm intrigued by the new BBC2 series starting tomorrow 'Time For Dinner' the trailer shows a 1950s gas cooker and a Creda Hallmark but I can't identify the cooker in the middle, looks a bit like a Belling Compact but the fascia looks to be all silver.
Ian
ps Did you get the Supertwin 70?