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Subject (Topic)
- Drafting and industrial drawings25
- Mechanical drawing23
- Architecture18
- Church buildings18
- Historic buildings18
- Architecture--Designs and plans--Working drawings15
- Agricultural instruments10
- Agricultural machinery--Design and construction10
- Mills and mill-work8
- Weights and measures8
- Drawbridges7
- Locks (Hydraulic engineering)6
- Naval architecture6
- Naval architecture Designs and plans6
- Naval drafting5
- Architecture--Designs and plans4
- Canals--Design and construction4
- Hydraulic engineering4
- African American women teachers3
- African Americans--Civil rights3