folderol | akubizone: snowce: Acoustic listening devices...

akubizone:

snowce:

Acoustic listening devices developed for the Dutch army as part of air defense systems research between World Wars 1 and 2.

Tagged: devices netherlands

Posted on December 17, 2009 via snowce with 8 notes

Source: snowce
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  OK, I am actually signing off to wrap presents, but this guy really reminds
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