AZO (1904-1918): Holbrook, Cabot & Rollins Corporation, Hinsdale, New Hampshire, Item 9304000657
CYKO (1904-1920s): Holbrook, Cabot & Rollins Corporation #25, Item 9304009058
Real Photo: Holbrook, Cabot & Rollins Corporation - Hinsdale, New Hampshire, Item 9304021490
AZO (1904-1918): The cut near Bolt Junction, Holbrook, Cabot & Rollins Corporation, Hinsdale, New Hampshire, Item 9304021790
AZO (1904-1918): Building the Underpass. Holbrook, Cabot & Rollins Corporation, Hinsdale, New Hampshire, Item 9304025550
AZO (1904-1918): Holbrook, Cabot & Rollins Corporation, Hinsdale, New Hampshire, Item 9304053140
AZO (1904-1918): Holbrook, Cabot & Rollins Corporation grading on the trestle across Lake Wantastiquet, Hinsdale, New Hampshire, Item 9304053150