The "Blasting Cap Tin Catalog" by Andy Martin is a100 page black & white softcover book which illustrates over 200 Blasting Cap tins. These metal boxes contained 10 to 100 fuse ignited detonators. The blasting caps were most commonly used in mines and quarries to initiate dynamiteexplosions. The tins were sold by all the major high-explosive manufacturers - eg. DuPont, Hercules, Atlas - and also solddirectly from the cap makers - California Cap Co, Metallic Cap, andothers. The book gives short histories of these companies, along withvariation and rarity information on the tins.