Logynon pregnancy calculator
- Made:
- 1984 in Burgess Hill
This image is released under a CC BY-NC-SA 4.0
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Science Museum Group
© The Board of Trustees of the Science Museum
Logynon pregnancy calculator, circular volvelle ready reckoner, mounted on plastic presentation box dated February 1984
Details
- Category:
- Mathematics
- Object Number:
- 1989-820
- Materials:
- plastic
- Measurements:
-
overall: 30 x 115 x 112 mm
- credit:
- University College Health Centre
