Thanks Stick, that may well prove helpful. Much Appreciated, Nick.
PS: Would anyone have any old copiesof Model Engineer from that era that might include his work? If so, might you find the time to glance through them. I know this is a ridiculous longshot, but apparently he was fairly regularly featured, and John remembers he specialised in building working model internal combustion engines, motor torpedo boats (about 5ft long) and locomotives (about 6ft long)