Button, Royal Marines uniform?

One button. Domed. On a smooth background, around the edge is a wreath of leaves. In the centre is a fouled anchor with the rope tied to the ring and goes diagonally below the left-hand stock to the appear under the right-hand stock, then goes under the shank to the left , then over the shank to the right, over the right arm and curls under the crown towards the left arm.

Object Details

ID: UNI7191
Collection: Uniforms
Type: Button
Display location: Not on display
Creator: Unknown
Date made: Unknown
People: Royal Marines
Credit: National Maritime Museum, Greenwich, London
Measurements: Diameter: 15 mm