This is Ben , not Bill , but …
spud ,
if you watch the 1972 movie
" Morning Of The Earth "
closely !
… you will see ? owl chapman? walking down a track in hawaii [ with terry fitzgerald ] , with a single fin with two little “sidebites” [ is what they seem to call them , nowadays ?] .
It is also clearly visible under his arm , as they sit on the beach , prior to the sequence of Terry Fitz absolutely ripping . I’m told it is Rocky Point. Then , Terry Fitz is shown ripping at Sunset…
in 1978-80 [and onwards , to this day !] Terry was , not surprisingly , working on models of what he called the ’ Drifta’ , at Hot Buttered Surfboards , his brookvale [Sydney] factory. Again , with two little side fins , in front of a standard single fin .
How do I know this ?
I was living in Sydney from 1964 to 1983.
'Surfing World Magazine ’ also used to do articles on him regularly , as he was one of the hottest surfer-shapers around , along with Simon Anderson , and a few others [eg : Ted Spencer] , working at Shane surfboards , at the time .
The australian surfboard site
www.surfresearch.com
also features a few of these boards in their catalogue section …
and , as you mentioned …
in America … the Campbell brothers , Duncan and Malcolm , were of course playing around with their three fin deep concave ’ Bonzers’, in the early seventies …
…which aussies Peter Townend and Paul Nielsen , among others , rode , here in Australia . [Also documented , in movies of the time ]
cheers !
ben