2 Vintage Manual Calculators. 1 is Chadwick Magic-brain Calculator 1950-1960's
![](https://i.etsystatic.com/37092409/r/il/1369f9/5352929194/il_fullxfull.5352929194_6lai.jpg)
![](http://www.johnwolff.id.au/calculators/addiators/MagicBrain-656-P6121055-4.jpg)
John Wolff's Web Museum - Slide Adding Machines
![](https://alamodern.com/img/2010/02/100220magicbrain1.jpg)
Vintage Chadwick Magic Brain Calculator on A La Modern
![](https://coimages.sciencemuseumgroup.org.uk/127/99/medium_thumbnail_1911_0255__0004_.jpg)
Magic brain' calculator. C.1955 Science Museum Group Collection
![](http://www.vintagecalculators.com/assets/images/AntiqueOfficeMachines_1.jpg)
Calculator Books
![](https://www.picclickimg.com/PtIAAOSwy~xjvpxk/Vintage-Casio-JL-820-Computer-Scientific-Electron-Calculator-Japan.webp)
Vintage Calculators, Vintage Electronics, Consumer Electronics - PicClick CA
![](https://media.karousell.com/media/photos/products/2023/8/15/antique_vintage_friden_model_h_1692088427_4254cd8d_thumbnail.jpg)
Affordable calculator For Sale, Vintage Collectibles
![](https://alamodern.com/img/2010/02/100220magicbrain2.jpg)
Vintage Chadwick Magic Brain Calculator on A La Modern
![](https://archive.computerhistory.org/resources/physical-object/chadwick/B1633-01.lg.jpg)
Chadwick Magic Brain Calculator, B1633.01
![](https://static.wixstatic.com/media/dd2652_7beabe298a4d4f0ab9e33d5145645fe8~mv2.webp)
Group of Vintage Adding and Numbering Machines
![](https://coimages.sciencemuseumgroup.org.uk/123/282/medium_thumbnail_1991_0369__0002_.jpg)
Magic brain' calculator. C.1955 Science Museum Group Collection
![](https://i.ebayimg.com/images/g/JQgAAOSwLnxlGYup/s-l1200.webp)
2 Vintage Versions of Chadwick Magic Brain Calculator
![](https://i.ebayimg.com/images/g/dx8AAOSw1eJi0T7J/s-l1600.jpg)
Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS
![](https://alamodern.com/img/2010/02/100220magicbrain4.jpg)
Vintage Chadwick Magic Brain Calculator on A La Modern