Verticals of the counting apparatus barrel. Sheet 3 of 9.
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This notation includes an accompanying draft, in pencil, described as 'Verticals for division Notation 290 upon one counting barrel for common division', with a note 'copied', numbered F.291/3[a] by Bromley.
Details
- Extent:
-
two sheets
- Identifier:
- BAB/F/291/3
- Access:
- Open Access
- copyright:
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