Plastic Fantastic, G&S, and Don Surfboards?

Got a couple east coast finds from a friend of mine. Any info would be great. First up, Plastic Fantastic single fin. Serial 9421 6’11" 19mid x 11tail x 13 nose.

 

Channels in the tail

 

Next up, Gordon & Smith twin fin (not original fins) 6’7" 20 3/4 x 20tail x 16.5nose, 2 3/4 thick. Interesting to me was the american flag logo (1976?) and the fact that it says “Gordon & Smith” on the bottom but “G & S” on the deck. It did have fin boxes. They are now glassed over with the new fins.

 

Last, Don Surfboards. Never hear of them before but it looks fun. The resin pinline work is really, really nice. 5’8" single fin.

Serial 1894-D?

 

Any info would be appreciated. Thanks

 

1 Jim Phillips would be the one to enlighten you about the Plastic.

2 The fact that it says “G&S” on one side yet Gordon and Smith on the other means nothing. They used both labels/lams interchangeably.

3 That Don is a Florida board and was built around 1972, or so by a guy named Don Bennett. The leash plug was likely added later on.