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Original U.S. Navy M-315-B hydrogen generator kit, manufactured December 1964, used for inflating meteorological and observation balloons. This sealed metal cartridge contains one hydrogen-generating canister, two check valves, two binding wires, tape, and cement—designed for use with Navy gas masks including ND Mark IV and NDO Mark I.
Features: - Model: M-315-B Hydrogen Generator Kit - Manufacturer Date: December 1964 - Contents: - 1 × Type B2m hydrogen-generating canister - 2 × check valves - 2 × binding wires - Tape and cement for hose repair - Condition: Sealed, unopened - Key: Original opener attached to lid - Dimensions: 11-5/8" height × 4-1/4" diameter - Weight: 1 lb 13 oz - Origin: U.S. Navy / Signal Corps issue - Use: Balloon inflation and gas mask maintenance - Compatibility: ND Mark IV, NDO Mark I diaphragm gas masks - Era: Cold War (1960s) - Collectible appeal for military science, naval gear, and Cold War chemical defense historians - No Longer intended for actual Use
