A Bilbo windsurfer ...?

Liam brought this board round the other day, a 1966 ish Bilbo longboard which his dad converted to a windsurfer in the early 80s. Sacriledge you may say but through the 70s lots of boards like this were thrown away. In the early 80s too these boards were very out of fashion, with all the cool boards being 5'8 /5'10 , which killed surfing a bit for beginners. Plus windsurfing was the new big thing, with starved surfboard shapers getting big windsurfer orders, and surf mags became full of windsurfing.
So at least this board has survived and can be restored; the main problems being an extra fin box and a wooden block sunk in the deck. It has been done though - Liam's dad had another similar Bilbo 'windsurfer' which Gul bought and restored. I like the sail number on the fin ; this board's a double stringer 9'8 , shaper unknown.