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