1960s Chadwick Magic Brain Calculator

1960’s Chadwick Magic Brain Calculator. Calculate numbers by using the metal stylus to slide the rows. Great condition! 5 3/4” x 3 1/4”
1960’s Chadwick Magic Brain Calculator. Calculate numbers by using the metal stylus to slide the rows. Great condition! 5 3/4” x 3 1/4”

John Wolff's Web Museum - Slide Adding Machines

② Magic-brain calculator 1960 — Collections Autre — 2ememain

Vintage Packaging: Magic Brain Calculator

Fillable Online The Development of the Magic Brain Calculator Fax

Estate Find!

Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS

Magic Brain Calculator, c. 1950-1969 - Machine, Calculating

National Museum of American History

Miscellaneous

Magic Brain: Last Gasp of the Mechanical Calculator