Collections in Cryptology - One Time Tape Devices

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Collections in Cryptology - One Time Tape Devices Key mechanisms in computation...
Hagelin CX-52 With a randomly punched 5-level one-time-paper-tape as a key.		Hagelin CX-52 With a randomly punched 5-level one-time-paper-tape as a key.
Lorenz 5-Level One-Time-Paper-Tape Vault Once locked, the tape cannot be returned to the vault so that any exposed portion cannot be reused.		Lorenz 5-Level One-Time-Paper-Tape Vault Once locked, the tape cannot be returned to the vault so that any exposed portion cannot be reused.
		Lorenz Mi544B One-Time-Tape Machine With one one-time-paper-tape vault in use, another open and one closed. (Anonymous collection.)
One-Time-Paper-Tape Canisters Once exposed, the paper tape cannot be reinserted, thus keeping it from being reused. The canister has a marbled pattern and is protected with a paper or holographic seal to reveal if it has been opened without authorization. (National Cryptologic Museum Collection)