Button, Royal Naval uniform: pattern 1825 and pre-1812?

Four buttons. Three of the buttons have a twisted rope edge. Within a raised circular border on a lined background are two fouled crossed anchors with the ropes crossing above the flukes. Purser.

One of the buttons has a twisted rope edge. Within a raised circular border on a lined background are two fouled crossed anchors with the ropes crossing just underneath the stocks. Purser, pre 1812?

Object Details

ID: UNI5874
Collection: Uniforms
Type: Button
Display location: Not on display
Creator: Haywood, R E; J. Mann & Co Nortzell & Broughton
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London
Measurements: Diameter: 22 mm; Diameter: 17 mm