This set of notations consists of one completed notation and an accompanying draft in pencil described as 'directive of common division. copied', dated 20 July 1839, numbered 128 by Babbage and F.128 [a] by Bromley.
The second draft, in pencil, is described as 'Cases of approximative division. To be inked. Copied', dated 6 April 1839, numbered 128 sheet 2 by Babbage and F. 128/2[a] by Bromley.
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