Vertical positions of the wheels of Plan 28 for algebraic addition of i k figures. First part of cycles ordered by verticals n and 'n of centre barrel. Sheet 20 of 23.
Dimensions of sheet folded out 54 cm x 64 cm.
Details
- Extent:
-
one sheet
- Identifier:
- BAB/F/261/20
- Access:
- Open Access
- copyright:
-
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