THE RHYTHM INDICATOR made in Elmira, NY. A device for calculating fertile days For Sale
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THE RHYTHM INDICATOR made in Elmira, NY. A device for calculating fertile days:
$10.00
The Rhythm Indicator- a simple calculator from the mid20th century using paper scrolls arranged to show a couplewhen the woman is likely to be fertile, and when she is not.This device was made in Elmira, New York.The paper scrolls appear to be intact, but the knobs that aresupposed to unroll them are not fastened to the scrolls.The device is for historical interest only.Shipped in a corrugated cardboard box. Please wait for my invoice before payment, as the shipping charge automatically generated by may not be correct.
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