Trip wire attached to iron rod; cartridge placed in socket and raised to top of rod. When trip is broken, the cartridge fell onto plate at the bottom … – 2007.32 (1)

Trip wire attached to iron rod; cartridge placed in socket and raised to top of rod. When trip is broken, the cartridge fell onto plate at the bottom … – 2007.32 (1)

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Trip wire attached to iron rod; cartridge placed in socket and raised to top of rod. When trip is broken, the cartridge fell onto plate at the bottom and discharged a warning of intruders or predators, such as foxes.

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