Bilbo stinger singlefin

Now correct me if I'm wrong, but there can't be many Bilbo stingers out there ! When I think of stingers I think Ben Aipa who designed them in '74 and they really became popular in the mid 70s with Mark Richards riding an Aipa quiver in '76/'77. But the Bilbo factory stopped producing in the very early 70s after a devastating fire, so how can we explain the stinger. Was the Bilbo shaper at the cutting edge of board design, or was it a later board using old decals. I'd like to think its the former, the board has great quality, nice pinlining and a lovely eggshell blue tint. It had a swallow tail which is a bit worn away now, and a leash loop rather than a later plug. From Chris' collection.