A belt of 5 inert British 20x128mm Cannon Rounds.
The cases are headstamped: "204 OE 83 BI"
The links are stamped: "BLM P13/84" or "BLM P14/84"
The 20x128mm round was developed by Oerlikon for their KAA Cannon and was adopted by the British Navy after the Falklands War.
Sorry, no international shipping.