The Fleet Safety Razor Blade by The Dominion Steel Corp. Ltd. of Sheffield. An individually wrapped 'WD' broad arrow marked razor blade that has been magnetized so that when suspended by a thread in a glass of water it would act as a compass for escape and evasion purposes. These were issued in packs with other blades but only one blade per pack was magnetized. Various different brands were used including 'Fleet', 'Dawn' and 'Cheerio'. One of many escape aids devised by Clayton Hutton and his team at MI9.
Light rust staining to blade otherwise in excellent condition. Stock code E17642.