I've no idea how I came by this - a block for printing official stationery for HMS Bulwark. It a hefty piece of steel - 400 g and 127 x 38 mm. It was scanned and flipped to get the true appearance. "Rusty B" lives on!
Bulwark.02.jpgBulwark.01.jpg29 Regt less 145 Bty sail for Singapore - HMS Bulwark 1964.jpg