Brass button with crown reverse has I.C.M.

Brass Crown Buttons - UK

Her Majesty's Customs - VR (Crown Above Belt) 16mm Brass QVC. Civilian uniform button

Her Majesty's Customs - VR (Crown Above Belt) 16mm with Queen Victoria's Crown. Brass Civilian uniform button

General Service - Royal Arms - Volunteers 17mm - 1902-1908 Military uniform button for sale

General Service - Royal Arms - Volunteers Military uniform button

WW1 PRUSSIAN GERMAN Imperial Army Vintage Military Button Maker

The Ninja Creami makes it so easy to make ice cream, it's dangerous

Uniform buttons researchers and collectors

Uniform buttons researchers and collectors

The reverse is marked Special Quality.

vintage brass uniform button showing a crown above a flying eagle

Crown MPC3000, PDF, Screw

Silver button hi-res stock photography and images - Alamy

The Anterior Cervical Lip: how to ruin a perfectly good birth