1891 Article Rock-blasting Electric Firing System Methods Machine James MAB1

This is an original 1891 one-page print article "Rock-blasting by Electric Firing" with four halftone illustrations of the machine and methods employed in the electric system of rock-blasting; manufactured by James Macbeth and Company, 128 Maiden Lane, New York. Fig. 1 shows the holes connected in series. Fig. 2 shows the Victor Electric fuses for exploding all grades of blasting powder and high explosives. Fig. 3 shows a machine testing the battery. Fig. 4 shows the standard electric fuse and blast tester.

CONDITION

This 120+ year old Item is rated Very Fine +. Moderate aging in margins. No creases. No natural defects. No surface rub. No tears. No water damage. Please note that there is bleed through showing in this article.

• Product Type: Original Print Article; Black / White
• Grade: Very Fine +
• Dimensions: Approximately 9 x 12.25 inches; 23 x 31 cm
• Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance
• Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation)

MAB1A12C91