I am looking for the history of a Contex Weight Calculator made in Denmark. I cannot find the history on it.
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.
i have a sharp elsi mate el-336 solar calculator not working.please advise of value.
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?
I would guess around $50. One just sold on eBay for $32 but the owner couldn’t power it up and assumed the battery was dead.
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