Cryptanalytic Equipment in operation

All photos from Record Group 457, box 804

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Universal Plugboard  Analytic Equipment

Universal Plugboard
Analytic Equipment

Gypsy, Topaz

Gypsy, Topaz

Operations Watch Office

Operations Watch Office

Mamba and more

Mamba and more

Maintenance Watch Office

Maintenance Watch Office

Cryptanalytic Equipment maintenance room

Cryptanalytic Equipment maintenance room

Main Deck, Nebraska Avenue

Main Deck, Nebraska Avenue

Sliding Grenade Attachment

Sliding Grenade Attachment

Pluggable Series

Pluggable Series

Special Projects Shop

Special Projects Shop

Loading wheels onto Duenna

Loading wheels onto Duenna

Duenna in operation

Duenna in operation