Subject
- War memorials16
- Flags15
- Chimneys14
- Gunpowder14
- Trees14
- Engineering drawings13
- Fire pot cooking13
- Powder magazines13
- Soldiers13
- Warehouses13
- Flagpoles12
- Catholic church buildings11
- Drawing11
- Excavation11
- Truck-mounted cranes11
- Earthmoving machinery10
- Bulldozers9
- Columns8
- Indians of North America8
- Navy-yards and naval stations8