Hadn't heard of 'maes stratalite', I presumed 'maes' was something to do with GB, but nope it's Strata:
https://www.classiclightweights.co.uk/classic_components/the-strata-engineering-company/
Which was around at about the same time.
Apparently (Ebay) maes stratalite was about 37cm ctc (14.6")...