Soviet mouse

    Today, sorting home pictures, I saw in the background an old BSM mouse. Since the quality of the mouse’s photo there is inappropriate, I found her photo on the Internet. Young people did not seem to see such a miracle - I think many will be curious. The
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    Soviet mouse, if I am not mistaken, was called BSM, it weighed at least half a kilogram, unless of course my memory serves me.


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    Manipulator of Graphic Information EC 1841
    Feature - a steel non-rubber ball, if I remember correctly, one and a half times more than usual.

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    Because of such a ball, the mouse rolled perfectly on any surface ... The mouse sounded especially good on a varnished table.

    And what was your first mouse?

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