Notation of division. Two figure wheels in each cage. Two cycles. Sheet 1 of 2.
- Babbage, Charles
This sheet of notations includes an enclosure described as 'Division 75. Sheets 1 and 2', numbered as F.75/1 by Bromley. It is undated, but a date of 1837 can be inferred from the date of the notation.
one sheet and one enclosure
- Large Format Document