Verticals for two barrels for counting apparatus for multiplication. Notation 268. Sheet 4 of 4.
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This notation includes two accompanying drafts. One is a full sheet, in pencil, numbered 289 Sheet 4 by Babbage and F.289/4[a] by Bromley. The second draft is described as 'Corrections of 289 Sheet 4', numbered by Bromley as F.289/4[1]. Dimensions of both sheets are 53 cm x 66 cm and those of the enclosure is 9 cm x 48 cm.
Details
- Extent:
-
two sheet and one loose enclosure
- Identifier:
- BAB/F/289/4
- Access:
- Open Access
- copyright:
-
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