So I take it you've got no RCD cert, proof of VAT paid, or a builders certificate ;-)
Possibly a Shetland 535 ?
http://www.shetlandboats.co.uk/history.php
http://www.shetlandboats.co.uk/range/
Marina Information -Marina boats were a builder of 16ft to 22ft cruisers. their production run was from the early 70s to early 90s. We have no further information on this manufacturer.
OK,thanks for that. Am I right about the transom dimensions?
I had one in 1963. Its a Marina GT. I put twin Johnson 33's on it. Looks like a transom modification cock up With respect I would put it back on EBay and buy one that has the original transom and with a working steering wheel, cables and throttle levers. And as it will weigh more than 750 kilo get a trailer with brakes.
Spoke to Jeff Hemmings finally. He tells me he made a Marina 21 GT to compete in the Cowes-Torquay race back in the late 60s and only made about two dozen of them. So looks like I have quite a rare boat. Would love to see a picture of an 'original' one, if anyone can find one.