Perpetual calendar, English, 1822-1869.
This calendar was designed for calculating the time of parturition � childbirth � and is made out of wood and ivory. The outer wheel is divided into four parts labelled: Conception, Quickening, Foetus Viable, and Parturition. It was manufactured by Ferguson at St. Bartholomew�s Hospital, London
- Currently on display in:
- The Science and Art of Medicine
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