Pineapple Poll was a Buchanan designed Bonito class yacht, built in 1961. Indeed she was the first Bonito, with a wooden hull built by French Bros. of Battlesbridge, and then finished by Stebbings. The hull was used as the plug in the construction of the mould for the later fibreglass hulls built by Seamaster Ltd, Dunmow.
Sadly, Pineapple Poll was destroyed in a fire in 1969/70 whilst laid up in a shed at North Fambridge. The photo above shows the remains after the fire, with the stem, bow roller and keel clearly visible. Afterwards the stem was buried in a nearby ditch. At that time she was owned by Dr Alan Eley of North Fambridge.
Many thanks to Ken Layzell for the fire aftermath photos.