Vintage Electronic Calculators:

Overview of Brands


APF: 41
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AKA: MARK 41, AKA (Label): MARK 41, Product number (P/N): 41,
Keywords/Tags: 41 | MARK 41
Date of intro: ~1974, Origin: Hong Kong (List), Dimensions: 112x65x35mm, Weight: 70g,
Power: 9V + Adaptor, Adaptor: APF_adaptors: 751S,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 19, #Key-Blue: 8, #Key-Grey: 11,
Classification: / Pocket,
Featuring: Procent, Square root,
Known Serial-numbers: H41023630 (H41-023630) | H41041346 (H41-041346) (List of all S/Ns from APF)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


Label, name plate
S/N: H41023630 (H41-023630)

Created: 13-apr-2014, Manual-update: 30-oct-2017, Batch-update: 23-mar-2023             

# Pageloads since 2018: 30             

2 Pic(s),


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