![Dieter Reith, Wolfgang Dauner, Elsie Bianchi, Ewald Heidepriem: piano x 4 / 1965
[via Birka Jazz Archive]](http://24.media.tumblr.com/tumblr_lydzfxSUvQ1qbwujvo1_500.jpg)
Dieter Reith, Wolfgang Dauner, Elsie Bianchi, Ewald Heidepriem: piano x 4 / 1965
[via Birka Jazz Archive]
hazanotations posted this on 27 Jan 2012 10:00
9 notes
Dieter Reith, Wolfgang Dauner, Elsie Bianchi, Ewald Heidepriem: piano x 4 / 1965
[via Birka Jazz Archive]
![The Trachtenberg Speed System of Basic Mathematics (c.1960)
[via Retro Graphic Design]](http://24.media.tumblr.com/tumblr_lxo1wt885Y1qbwujvo1_500.jpg)
The Trachtenberg Speed System of Basic Mathematics (c.1960)
[via Retro Graphic Design]
Introduction to the Theory of Numbers, 1957
Cover design by J Lloyd Dixon
(via Book Worship)
Apt. #3
(photo by randi hazan)
(Source: hazanotations.com)
Summer Retro Paper Clips Journal (Handmade by Words and Eggs)
![Mathletics by Jason Wong [via Friends of Type]](http://25.media.tumblr.com/tumblr_l7sbm6JxIy1qbwujvo1_500.png)
Mathletics by Jason Wong [via Friends of Type]
1977 Citizen 121F Desktop Calculator
Approximately 2.75 lbs with a 7x10 inch footprint
(via Vintage Technology)
