Conical Buoy (G.B.)
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2-6-230
Nun Buoy (U.S.A.)
A buoy of which the upper part of the body (above the waterline), or the larger part of the superstructure, has approximately the shape of a cone with vertex upwards.
Note: In France, a conical buoy of which the lower part of the body (mainly below the waterline) is of spherical shape is also known as a Bouee Sphero-Conique.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)