Hi, Colin, Tony, in the time between reading Colin's response and Tony's I found my copy of the magazine, tucked away in a separate envelope as I was also interested in the yacht Carribee. It is the copy I bought 60+ years ago. Thanks for the responses.
Cost of plan was 5/- (5 shillings = 25p now). It came from 38 Clarendon Road Watford, just 15 mins walk away from where I live, all re-built now.
The construction write up is scant by todays expectations, no build photos, you are offered 2 methods of hull construction B & B or a la G.G. It is a nice little boat 31 inches loa but I am wondering at it's stability having been down that route a couple of years ago with my obechi version of Noggsund.
I went to sleep last night calculating displacement if the hull was deepened by 1 cm. That might work.
I remember the building of it now I had the hull constructed (B & B) but the thought of making all those passenger seats / floats was too daunting, clearly a short attention span!
Thanks,
Roy