This is a ROYAL MILITARY POLICE 25mm diameter nickel button, 1936-52 pattern with KGVI crown & cypher.
It has a Firmin & Sons Ltd London backmark and is in good condition with shank intact.
UK buyers please wait for an invoice if you win more than one item so that I can combine postage where possible. Non-UK buyers please note that international shipping is offered ONLY via Ebay's Global Shipping Programme, and I am unable to offer any other international shipping service or revise the postage after purchase.