This is a miniature of the Kingdom of Prussia’s Combatant’s Medal for Service in the 1848-1849 Wars. The obverse has a cross and a Hohenzollern Eagle. The reverse displays the war’s dates, and mentions König Friedrich Wilhelm IV of Prussia. The miniature measures 1/2″ in diameter. It has a small attachment at the top. It could have been worn on a tie bar where a veteran would display all of his decorations.