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    Re: Astro slide rule.
    From: John A Brown
    Date: 2017 Nov 9, 16:39 -0800

    For anyone interested in purchasing a brand new circular slide rule Concise Co. Ltd in Japan still make them. I recently purchased one and it is a real pleasure to use.

    Model no 270N

    Diameter 10 cm

      Scales on the front A, D, C, CI, B, K, L and on the back DI, D, S, T1, T2, ST

    It comes with a plastic sleeve and instructions in Japanese which are easy to follow. The cost is 2700 Japanese yen which for me was about $32 Australian plus postage of course.

    They can be contacted through their website which can be found by putting "Concise Co.Ltd" into Google.


    the other

    John Brown

    Adelaide, South Australia.

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