Subject
- Liberty Bell.1
- Models and modelmaking.1
- Mountains.1
- National parks and reserves--United States.1
- Paddle steamers.1
- Piano.1
- Pittsburgh (Pa.)--Buildings, structures, etc.1
- Playgrounds.1
- Prisons.1
- Pumpkin.1
- Railroad passenger cars.1
- Railroad tracks.1
- Railroad trains.1
- Railroad travel--United States.1
- Railroad tunnels.1
- Railroads, Miniature.1
- Rock climbing.1
- School field trips--United States.1
- Ski lifts.1
- Skiing.1