- Stop Signal
- Stevens-Duryea
- Stearman PT-17 &18
- Standard Raymond Brake
- Space Shuttle - top plan
- Space Shuttle - starboard elevation
- Space Shuttle - port elevation
- Space Shuttle - isometric
- Space Shuttle - forward and Adt elevations
- Space Shuttle - component isometric
- Sovereign, Model M
- Sounding by Machine
- Sopwith Military Biplane
- Some types of American and foreign aeroplanes
- Some types of American and foreign aeroplanes
- Smith & Mabley Limousine
- Single-seated Air Scout
- Single Post, Double track, Steel Elevated Bicycle structure
- Single Electric Bicycle Structure
- Single Bicycle Elevated Structure
- Sidecar
- Side view of bicycle motor wheel
- Shop engine, 1901
- Ship saved by life line thrown from a rescue airship
- Semi-rigid Airship
- Sectional View of Bicycle Motor Car
- Section of the Goubet Submarine Boat
- Section of First-rate Man-of-War
- Seating Arrangement of Rowers in a Greek Trireme
- Sea-plane to carry a crew of seven
- Screenshot (35767)
- Screenshot (35750)
- Scouting over the ruined region between the lines (no man’s land)
- Scouting Monoplane, with occupants below the wings.
- Scientific American Trophy
- Schooner rigged Sharpie
- Santos-Dumont’s Biplane which flew at Bagetelle
- Santos-Dumont’s Airship
- Santos-Dumont
- Sacramento Trolley System Map
- Sacramento Northern Car 64 on C Street
- Sacramento Electric, Gas and Railway Co., Car 2
- Sacramento Electric, Gas and Railway co. on the J Line
- Sacramento City Lines Cars at S.P. Depot
- Sacramento City Lines Car on 10th Street near M St., 1946
- Sacramento City Lines Car 90
- Ryan PT-22
- Rufus Porter’s dirigible, 1820
- Royal Mail Coach
- Route of British military dirigibles from France to England, 1900
- Rot at Mouldering Wharves
- Room to pass
- Robert Fulton’s Clermont
- Robert Brothers’ dirigible, 1784
- Ride in the automobile
- Revenue Cutter
- Republic P43-A
- Republic P-47B
- Republic P-35
- Republic AT-12