50 Pence - Elizabeth II RAF - Typhoon

Guernsey has issued commemorative 50 pence pieces under royal licence for decades, frequently contracting The Royal Mint or private minting houses to produce themed collector series with no meaningful circulation intent. This piece marks the centenary of the Royal Air Force's formation in 2018 — though the 2020 date suggests it belongs to a later wave of releases extending that commemorative program rather than the core centenary issue itself.

Gold-plated copper at this specification is the workhorse format of the mass-market commemorative trade.