Yonkers pressure tunnel. Completed section of standard circular type o...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Four acid drop-out cases, each 144 inches by 50 feet ; Two 60-tray Fra...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
The Devil's Punch-bowl (10 feet 11 inches deep), Glens Falls.
New York State stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker w... More
Last Rose of Summer. (Gypsum formation on the ceiling of Cleveland's C...
Kentucky stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Last rose of summer, (gypsum formation on the ceiling of Cleveland's C...
Kentucky stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Last rose of summer, (gypsum formation on the ceiling of Cleveland's C...
Kentucky stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
The Devil's Punch-bowl (10 feet 11 inches deep), Glens Falls.
New York State stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker w... More
Hauling train of completed apparatus from Shipping-bay to Main-line ; ...
Picryl description: Public domain image of railroad tracks, train car, railway, free to use, no copyright restrictions.
The large stone in the quarry, Ba'albek called the Hajr el Hûbla. It i...
Public domain image of Egyptian art, free to use, no copyright restrictions photo - Picryl description
The Devil's Punch-bowl (10 feet 11 inches deep), Glens Falls.
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
View of chained African slaves in cargo hold of slave ship, measuring ...
Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description
Last rose of summer, (gypsum formation on the ceiling of Cleveland's C...
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
Last Rose of Summer. (Gypsum formation on the ceiling of Cleveland's C...
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
Reception room of a Damascus house, showing the lower portion of it on...
Public domain image of Egyptian art, free to use, no copyright restrictions photo - Picryl description
Last rose of summer, (gypsum formation on the ceiling of Cleveland's C...
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
Last Rose of Summer. (Gypsum formation on the ceiling of Cleveland's C...
Kentucky stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
The Devil's Punch-bowl (10 feet 11 inches deep), Glens Falls.
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
View of chained African slaves in cargo hold of slave ship, measuring ...
Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description