REMOVE

1. Railroad
2. Covers
3. United States
4. 1870

WHAT

1. Game (1)
2. Pocket Map (1)

WHERE

1. Delaware (1)
2. Maryland (1)
3. New York (N.Y.) (1)
4. San Francisco (Calif.) (1)

WHO

1. Colton's Geographical Est … (1)
2. Colton, G.W. & C.B. (1)
3. G.W. & C.B. Colton (1)
4. No Publisher (1)
5. Union Pacific Railroad Ga … (1)

WHEN

1. Pacific Railroad (1)