a fishy bolt

Just found this ad in Surf Insight from summer 1973, mystery solved its a British board, with a big Hawaiian influence...
This looks like another classic case of logo rip off. For sale on UK ebay, 'Gerry Lopez vintage litening bolt', £300 starting bid ! It turns out this was actually shaped by Bob Groves , probably at St Leonards on the south coast of England. I guess he hoped to sell them more easily with the look-a-like Lightning Bolt logo.