Forty five buttons (thirty-four x 23 mm, eight x 8 mm and 3 x 16 mm). Rope twisted edge. Within a raised circular border on a smooth background is a post-1901 crown over a fouled anchor with the rope appearing from under the right-hand side of the stock to go over the shank to the left and then under the shank to the right and finishes under the right arm. Commissioned officers.