Limited Edition Class Coin - NSW Police Force Service and Sacrifice Since 1862. On the back of the coin is Class 316 Attested 24th August 2012 NSW Police Academy and 150 Years in Policing logo. - . The coin is enclosed in a hard plastic case and presented in a plastic sleeve with a card explaining the significance of the NSW Police Force insignia. Coin measures 40mm in diameter. Seperate velvet coin case available on website for $5.00