Page 77 - Colin Jarman "The Essential Knot Book"
P. 77
26 JURY OR MASTHEAD KNOT
A Masthead Knot may be used for attaching shrouds to a jury mast or for
erecting a temporary flag pole and many other similar applications.
Three loops are formed and interleaved so that the left part of the bottom one
overlaps the right side of the top one in the centre of the middle loop. These two
sides are then pulled out in a weaving pattern as shown and the top side of the
middle loop is pulled upward. The process produces three loops and two tails,