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)
Powerhouse Collection - Two Magic Brain pocket calculators
Vintage Chadwick Magic Brain Calculator. Made in Japan. Mid century modern. This item is used and has visible scratches and signs of usage. I have
Vintage Chadwick Magic Brain Calculator. Made in Japan Mid century modern.
Pocket Calculator Isn't A Brain Or Magic
Affordable calculator For Sale
Magic Brain Calculator (Japan) w/instructions Unused
File:Vintage Fedtro Precision Mechanical Pocket Calculator, Made
Pocket Calculating Devices
VINTAGE MAGIC BRAIN Calculator 1960s MIP Unopened - made in
Calculator - Wikipedia
Slide Rules & Calculators — The National Museum of Computing
Sterling Slide Adders