Chop's from the UK

Vikki has sent me these photos of a nice late 70's semi fish twin fin she picked up recently. She tells me it was shaped locally by a guy named Chop's who owns Beachbeat surfboards in the UK.
The fins are the old US Rainbow fin system and sadly won't take a modern fin box fin or the FCS fin box converter. Note how both plastic fins are the same and have a foil on both sides of the fin, rather than being flat on the inside face.
She is worried the fins may fall out. In my experience the only trouble you'll ever have with a fin box of this age is ever getting the fins out at all.
Bluey wrote to me with some more info....
Peter "Chops" Lascelles, originally comes from Caloundra, settled in UK many years ago. He's the younger brother of Dave Lascelles, who set up Cord Surfboards, with McTavish, Platt, and Greenough on the scene also.
Last time I was in his shop (a couple of years ago) he had a couple of boards that Damian Hurst had sprayed (apparently Hurst wife come from St Agnes and surfs). Chops shaped them and then had his glasser finish them. Ones about to come up for auction in Sotherbys, c.£70,000+, reckon it will go for over £100k, don't think it will ever get wet....