Here's a fine example of a mid 70s Cooper single fin swallow tail by Richie West, a fine shaper from the concave bottom school of thought.
These designs worked well back in Californian waves and found a following also here in Australia!
Fast and responsive, 6'6 x 20" with plenty of nose area for those stretcher fives, and I've surfed this particular board for several years and it goes like a bullet on clean waves!
Condition An 8/10 with just a few minor dings in the bottom (repaired) and a touch up along the rails.
Comment Great design that's still being used by innovative shapers today. Ride it or hang it.