Vtg 1960's Mechanical Pocket Calculator - Made in Japan - Magic Brain

, This one is not branded Linemar or Vanguard Magic Brain but this is the exact same modelling and moulding. In working order (see video)

John Wolff's Web Museum - Slide Adding Machines

Vintage 1960's Magic Brain Pocket Calculator W/Stylus, Made in

Affordable calculator For Sale

Powerhouse Collection - Two Magic Brain pocket calculators

File:Vintage Magic Brain Mechanical Pocket Calculator, Made in

Magic Brain: Last Gasp of the Mechanical Calculator

Magic Brain Calculator (Japan) w/instructions Unused

Old Vintage Computing Research: CAP-X and COMP-X: how the Tandy

Magic Brain: Last Gasp of the Mechanical Calculator