Description: ThisHollow Steel Bolt is a historically inspired spy device, machined from solid 5/8" steel and hollowed to conceal tiny messages, microfilms, or other miniature items. Its threaded, removable head allows for secure storage while remaining completely inconspicuous.
During the Cold War, devices like this were used to discreetly transfer intelligence between operatives without direct contact. Bolts could be left in ordinary locations—on bridges, vehicles, or industrial equipment—then replaced with the original after retrieval, ensuring secrecy and stealth.
Features:
Hollowed 5/8" steel bolt with threaded, removable head
Durable, solid steel construction
Perfectly concealed compartment for micro-items
Historically inspired Cold War design
Compact and discreet
Uses:
Spy-themed collector’s item or display piece
Educational tool for Cold War history enthusiasts
Discreet storage for tiny valuables or notes
Novelty or conversation piece
Condition: New, precision-machined for authenticity and durability
Shipping & Handling: Carefully packaged to ensure safe delivery
