Vintage 1960's VANGUARD Magic Brain Calculator Japan NOS

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VINTAGE MAGIC BRAIN CALCULATOR - Made In Japan 1970's w/ Box and Stylus Retro £9.95 - PicClick UK

Aug. 1, 2023: Volume XCI, No. 15 by Kirkus Reviews - Issuu

Pocket Calculator

Vintage 1960's VANGUARD Magic Brain Calculator Japan NOS

VINTAGE SHARP ELSI Mate EL-8116 Calculator ~ NOS $19.95 - PicClick

National Museum of American History

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VINTAGE KINGSON MAGIC brain pocket calculator with stylus Hong Kong £17.11 - PicClick UK

VINTAGE SHARP ELSI Mate EL-8116 Calculator ~ NOS $19.95 - PicClick

Vintage Chadwick Magic Brain Calculator on A La Modern

Harry Lorayne's Marvel of Memory - The New York Times

VINTAGE 1960S MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS $39.99 - PicClick