Civil Flying School
Thanks to all who posted, I feel that I've struck out as far as helping the old chap goes.
The relative who bought the certificate tells me that it came directly from Civil themselves, so there doesn't appear to be much hope for her money, nor her uncle's flight.
As an aside, would the afore-mentioned Mike Sutcliffe be the one married to Ruth King! Not screamingly important, just being nosey!!
Kind regards,
TheNightOwl.