What were those things called? Red, blue or green tape fed through a gun that stamped silvery letters so that my Grandfather could write his name in block capitals and stick it on his torch and claim it for his own. It was a big torch. The round lens was the size of a saucer and the battery could have powered a car. Each night he took it down from the sideboard, once he’d got his uniform on, and took it to work, put it in his car where he also kept a shovel in case there was snow. His black cap with a crow-like beak. A silver whistle on a chain. A whistle that belonged on a steam train. Moon-sized buttons waxing and glowing on his black coat. The strange keys for setting the clocks. Security was a low-tech clockwork business back in 1974.