_Figure_
1.—Museum photo 25370
2.—Museum photo 2720
3.—Museum photo 23554
4.—Museum photo 43102
5.—Museum photo 43130
6.—Museum photo 16534
7.—Museum photo 43586-B
8.—Museum photo 16048
9.—Museum photo 31975
10.—Museum photo 43076-B
11.—Museum photo 43076
12.—Museum photo 30571-A
13.—Museum photo 32367-E
14.—Museum Chaney photo 24478
15.—Photo courtesy Baltimore and Ohio Railroad Co.
16.—Museum photo 43054-A
17.—Photo courtesy Baltimore and Ohio Railroad Co.
18.—Museum photo 13225-B
19.—Museum photo 43586
20.—Photo courtesy Redwood Library
21.—Photo courtesy Southern Railway System
22.—Museum photo 43054
23.—Museum photo 25012-B
24.—Museum photo 43076-A
25.—Museum photo 43060
26-27.—Photos from Chaney collection
28.—Museum photo 31959-A
29.—Museum photo 14293
30.—Museum photo 34328
31.—Museum photo 29759-A
32.—Museum photo 16538
33.—Museum Chaney photo 8810
34.—Museum photo 21243-C
35.—Museum Chaney photo 13758
36.—Photo courtesy Pennsylvania Railroad Co.
37.—Museum photo 23552
38.—Museum Chaney photo 1429
39.—Museum Chaney photo 1457
40.—Museum Chaney photo 13528
41.—Photo courtesy Baltimore and Ohio Railroad Co.
42.—Museum photo 32097-A
43-45.—Photos courtesy Baltimore and Ohio Railroad Co.
46-47.—Photos courtesy Chicago and North Western Railway System
48.—Museum Chaney photo 20295
49.—Photo courtesy Baltimore and Ohio Railroad Co.
50.—Museum photo 43094
51.—Museum photo 43182
52.—Museum Chaney photo 13799
53.—Museum photo 43083
54.—Museum photo 30457
55.—Museum Chaney photo 13538
56.—Photo courtesy Reading Co.
57-58.—Photos courtesy University of Maine
59.—Photo courtesy Baltimore and Ohio Railroad Co.
60.—Museum Chaney photo 10314
61.—Museum photo 26977-B
62.—Museum photo 30397
63.—Museum photo 43299
64.—Museum photo 26981-B
65.—Museum photo 26974-A
66.—Museum photo 26899-A
67.—Museum photo 43598
68.—Museum photo 43299-E
69.—Museum photo 43297
70.—Museum photo 26847-H
71.—Museum photo 43298
72.—Museum photo 43298-A
73.—Museum photo 43298-B
74.—Museum photo 43299-A
75.—Museum photo 42272
76.—Museum photo 43299-B
77.—Museum photo 43299-C
78.—Museum photo 43299-D
79.—Museum photo 43297-A
80.—Museum photo 43293
81.—Museum photo 43297-B