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7 thoughts on “Contact Us

  1. I am looking for the history of a Contex Weight Calculator made in Denmark. I cannot find the history on it.
    Thank you

  2. Phillip,
    I have 4 Pac’s of HP-65 magnetic cards. One Standard Pac 1, one Stat Pac 1, one E.E. Pac 1 General, and one case that has 40 magnetic cards; I assume they are blank. I would like to find them a good home. Any help would be appreciated.
    Thank you,
    Pamela Farver

  3. I have a CASIO MQ-12 calculator that I would like to sell. It is in beautiful condition (all functions work/no scratches). It comes with a leather case. New batteries. What is the value of this unit?

  4. Hi there, I have a Texas Instrument SR-16 (the first one) in perfect working condition, any idea what it’s worth?


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