description Object description A No 10 delay switch, known as a "Time Pencil", for use with detonators or fuzes when employing demolition charges. Show more Object details Category Weapons and ammunition Catalogue number MUN 2134 Related objects Weapons and ammunition Switch, No. 10, Delay (Time Pencil) Weapons and ammunition Switch, No. 10, Delay (Time Pencil) Weapons and ammunition Switch, No. 10, Delay (Time Pencil) Share this Share on twitter Share on facebook