1881 Article Bullet-Finder Electrical Metal Detector George M. Hopkins Medicine - Original Print Article

1881 Article Bullet-Finder Electrical Metal Detector George M. Hopkins Medicine - Original Print Article Review

1881 Article Bullet-Finder Electrical Metal Detector George M. Hopkins Medicine - Original Print Article Feature

• Product Type: Original Print Article; Black / White
• Grade: Very Fine +
• Dimensions: Approximately 9.5 x 13 inches; 24 x 33 cm
• Authentication: Dual Serial-Numbered Certificates of Authenticity w/ Full Provenance
• Packaged in custom sleeve w/ archival black board (great for display, gift-giving, and preservation)

This is an original 1881 one-page print article about the Bullet-Finder electrical apparatus, invented by Mr. George M. Hopkins. Fig. 1 represents the Diagram, the arrangement of battery, microphone, and primary & secondary circuit wires, showing circuits of the induction Balance. Fig. 2 represents the Induction Balance used as a bullet-finder, showing the apparatus properly connected and in the act of being used to locate a bullet.