Sargent and & Greenleaf PROTOTYPE Safe Dial Lock 1960s!

This listing is for one Sargent and Greenleaf Prototype 8400 Acrylic Safe Dial Display.
It was made during the 1960s and is in very good condition.
Very few were made and the only other ones I've seen are in the Harry C. Miller Collection.
This clear acrylic dial and dial ring was made to show drilling or tamper marks on or under the dial ring on the container. The U.S. government was worried about the KGB getting into its classified containers and replacing the lock.
The dial and butterfly knob spin freely and smoothly.
Please see my other auctions for more high security locks.
Other Auction Info: Some of the key cuts have been obscured in the photos for the buyers privacy. What you see in the pictures is exactly what you'll get. If it's not in any of the photos, then it's not included. All items are thoroughly tested before being put on Ebay. I will never sell anything that doesn't function properly. The lock will be professionally packaged so it's not damaged during shipment. Payment must be made within 48 hours. Internationalbuyers: Please wait to receive the invoice with shipping costs before making payment. Also, the buyer is responsible for all tariffs or taxes levied on the item. I do not know if or what each country charges on imported items, so please check your local laws.
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