Back to photostream

CoConingsby

Pneumatic Tubing System

Here's How Traders Used To Instant Message Each Other Back In 1922

 

www.businessinsider.com/pneumatic-tubing-system-used-for-...

104 views
0 faves
0 comments
Uploaded on April 23, 2013
Taken on April 23, 2013

Pneumatic Tubing System

Here's How Traders Used To Instant Message Each Other Back In 1922

 

www.businessinsider.com/pneumatic-tubing-system-used-for-...

104 views
0 faves
0 comments
Uploaded on April 23, 2013
Taken on April 23, 2013
All rights reserved