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Subject
- Drafting and industrial drawings23
- Mechanical drawing21
- Architecture--Designs and plans--Working drawings14
- Agricultural instruments7
- Agricultural machinery--Design and construction7
- Mills and mill-work7
- Weights and measures7
- Naval architecture5
- Naval architecture Designs and plans5
- Naval drafting4
- Architecture--Designs and plans3
- Canals--Design and construction3
- Enslaved persons3
- Hydraulic engineering3
- Nineteenth century3
- Plantations3
- Flat roofs2
- Paint materials2
- Slave bills of sale2
- Slaveholders2