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nsaspook

Joined Aug 27, 2009
16,249
Next photo: a stack of…….?

View attachment 364345
A stack of Cryptographic keying cards?
They went here. :eek:
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Some broken ones inside the US embassy in Iran 1979.
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As the raid came rather unexpectedly, communications personnel had to rush in order to get all crypto gear destroyed in time. The image above shows part of the communications room in the embassy, with a KW-7 unit clearly visible at the front. It has been pulled out of the 19" rack, the top has been removed and the critical cipher board have been taken out and destroyed.
 

WBahn

Joined Mar 31, 2012
32,702
Have used those many times and I have some smaller versions of them with all of my drafting tools. I used to love drafting and did several things for fun, such as draw up a three-view vision of space fighters and then use those to do an orthographic projection of them. Still have a couple of those lying around, including one I did in 9th grade after taking a semester-long drafting class. I keep hanging on to all of that stuff because of the good memories associated with it, but as I do more decluttering, I will probably break down and convince myself that it is time to let it all go.
 

WBahn

Joined Mar 31, 2012
32,702
Next photo: a stack of…….?

View attachment 364345
80-column punch cards. Used for LOTS of different things, from storing computer programs to data records to configuration information for various pieces of hardware. At least a few people used them for going group testing via superimposed codes, but I don't know if that was ever done in anything other than research and proof-of-concept situations.
 
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