Calculators/Educational Toys

I'd like to start collecting calculators more, so my collection is small as of now.

1976 TI-30 calculator, with booklet and case

1989 HP 10B Business calculator

1974 Litronix 2140 calculator, with case

1986 Texas Instruments Speak & Math, with box, activity booklet, and manual

1978 Texas Instruments Speak & Spell. This belonged to my mom in the 80's

Yes, they are ugly, and that is the point.

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