[GreenKeys] OT: Mechanical Adding Machines

[Wa3frp]

I've got the Curta Calculator Type 1 - used it in the early 1970s for TSD (Time Speed Distance)  Road Rallies.   It is very handy and easy to use and helped keep us on time as we traveled over hill and dale in search of the next checkpoint.


Russ - WA3FRP
wa3frp at aol.com

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