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![Eveready Single Shot Blaster and Firing Unit.JPG - EVEREADY SHOT FIRING UNIT - Rare single-shot blasting unit, end marked EVEREADY SHOT FIRING UNIT, nickel plated brass tube, with brass plaque marked PERMISSIBLE SINGLE-SHOT BLASTING UNIT APPROVAL NO. 1206 issued by the U.S. Bureau of Mines to the National Carbon Co. Inc., uses 3 D size Eveready No. 950 unit cells, 8 1/2 in. long, 1 1/2 in. dia., tube marked on side Eveready Shot Firing Unit Case No 2696, 3 Unit Cells No 950, Made in U.S.A. Trade Marks Registered, firing unit 3 1/4 in. long and 13/16 in. dia. with copper wire leads, side marked EVEREADY SHOT FIRING UNIT [Approval No. 1206 was issued to NationalCarbon Co. on August 20, 1925; see Ilsley and Hooker, Permissible Single-Shot Blasting Units, Bureau of Mines Technical Paper 429, 1928]](Eveready Single Shot Blaster and Firing Unit.JPG) |
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| Eveready Single Shot Blaster and Firing Unit | EVEREADY SHOT FIRING UNIT - Rare single-shot blasting unit, end marked EVEREADY SHOT FIRING UNIT, nickel plated brass tube, with brass plaque marked PERMISSIBLE SINGLE-SHOT BLASTING UNIT APPROVAL NO. 1206 issued by the U.S. Bureau of Mines to the National Carbon Co. Inc., uses 3 D size Eveready No. 950 unit cells, 8 1/2 in. long, 1 1/2 in. dia., tube marked on side Eveready Shot Firing Unit Case No 2696, 3 Unit Cells No 950, Made in U.S.A. Trade Marks Registered, firing unit 3 1/4 in. long and 13/16 in. dia. with copper wire leads, side marked EVEREADY SHOT FIRING UNIT [Approval No. 1206 was issued to National Carbon Co. on August 20, 1925; see Ilsley and Hooker, Permissible Single-Shot Blasting Units, Bureau of Mines Technical Paper 429, 1928] |  Original Image |
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