bmrrhs: York Utilities No. 102 Sanford, Me., Mar. 28, 1949
bmrrhs: B&M E7 No. 3812 at Boston North Station, June 1948
bmrrhs: B&M E7 No. 3803 at Boston North Station, Feb. 12, 1947
bmrrhs: B&M S-5 No. 1280 at Billerica, Mass., Mar. 25, 1976
bmrrhs: B&M GP-7 No. 1560 at Boston Engine Terminal, Apr. 16, 1976
bmrrhs: PTC S-1 No. 1005 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: PTC S-1 No. 1008 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: PTC S-1 No. 1053 at Rigby Yard, South Portland, Me., Feb. 20, 1976.
bmrrhs: PTC S-4 No. 1057 at Rigby Yard, South Portland, Me., Feb. 20, 1976.
bmrrhs: PTC S-4 No. 1062 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: PTC S-1 No. 1101 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: PTC S-1 No. 1006 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: PTC S-1 No. 1007 at Rigby Yard, South Portland, Me., Feb. 20, 1976
bmrrhs: Unidentified signal tower, c1910
bmrrhs: Unidentified signal tower; possibly Clinton Jct. per Preston Johnson, undated
bmrrhs: Signal tower and station at Dover, N.H., c1940
bmrrhs: Signal tower at Dover, N.H., c1960
bmrrhs: Concord Tower, Concord, N.H., undated
bmrrhs: Battery room, Concord Tower, Concord, N.H., undated
bmrrhs: Billerica Locomotive Shop, Entire Force, July 11, 1924
bmrrhs: B&M Extra No. 12, Sanbornville, N.H., 1905
bmrrhs: Bleachery tower, Lowell, Mass., c1945.
bmrrhs: Bleachery tower, Lowell, Mass., c1945
bmrrhs: Bleachery tower, Lowell, Mass., c1945.
bmrrhs: Bleachery tower, Lowell, Mass., c1945
bmrrhs: Bleachery tower, Lowell, Mass., c1920
bmrrhs: View of old Ayer tower on the signal bridge, undated
bmrrhs: Ayer tower, c1955
bmrrhs: Mort Clark, tower operator, poses with Union Switch & Signal Co. electro-pneumatic switch machine, June 1946.
bmrrhs: Ayer tower, c1946