Item

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#0048 (196909):
OMRON: 1210 (version-1)
...Unknown chipset inside

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#0048 (196909):
OMRON: 1210 (version-1)
...Unknown chipset inside

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#0049 (196911):
SHARP: QT8D
...First LSI (Large Scale Integration) portable calculator

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#0049 (196911):
SHARP: QT8D
...First LSI (Large Scale Integration) portable calculator

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#0050 (197?):
OMRON: DI87 (version-1)
...

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#0050 (1970):
CANON: EP150
...Special printer-concept

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#0051 (1970):
CANON: EP150
...Special printer-concept

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#0051 (1970):
RASA: (Unknown model)
...Probably the only calc. supporting a stroboscopic display

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#0052 (1970):
RASA: (Unknown model)
...Probably the only calc. supporting a stroboscopic display

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#0052 (197004):
CANON: Pocketronic
...First 'handheld' battery-powered printing electronic calc.

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#0053 (197004):
CANON: Pocketronic
...First 'handheld' battery-powered printing electronic calc.

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#0053 (197004):
SANYO: ICC82D (version-1)
...First Nixie tubes + Rechargeable batteries in a portable

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#0054 (197004):
SANYO: ICC82D (version-1)
...First Nixie tubes + Rechargeable batteries in a portable

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#0054 (19701012):
SMITH CORONA MARCHANT (SCM): 1
...Unique portable Nixie calculator

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#0055 (19701012):
SMITH CORONA MARCHANT (SCM): 1
...Unique portable Nixie calculator

^
#0055 (19701118):
MOSTEK_parts(E): MK6010 (CalcChip)
...First Calculator-on-a-chip

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#0056 (19701118):
MOSTEK_parts(E): MK6010 (CalcChip)
...First Calculator-on-a-chip

^
#0056 (1971):
BROTHER: 310
...No division, too complex for the chipset

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#0057 (1971):
BROTHER: 310
...No division, too complex for the chipset

^
#0057 (1971):
BUSICOM: 141PF
...World's first micro processor (INTEL) based calculator