I have a vague recollection of petrol coupons being issued - but never
being used- in the mid 70s when I was about 17. It may have been earlier
but I think I had some for my motor bike. I do remember petrol was 35p a
gallon when I was 17. I had a nasty accident and watched a tank full I had
just paid for spew across the road.
Certainly, in Apr 1980, one of the Secretaries where I was working sent a
memo on 1 Apr to several people attaching a few she had kept. It was a very
good April fool, I think there was some issue with fuel supplies at the
time so her timing was perfect. I still remember the wicked glint in her
eye ;-)
I think petrol was about 62p a gallon at the time. Not sure why I remember
that.