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Welsbach Gas Light Company photograph album, 1888-1940 (inclusive)
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]