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new york public library

science industry and business library general collection

20th century

ashokan

ashokan reservoir

botanical illustrations

botany

core

public
3 media by topic ∙ page 1 of 1
Ashokan Reservoir. View showing concrete core -wall of Middle dike with earth embankment on up-stream side. Contract 3. Decenber 8, 1910.

Ashokan Reservoir. View showing concrete core -wall of Middle dike wit...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Ficus = Figuier. [Core of common fig]

Ficus = Figuier. [Core of common fig]

Public domain image related to botany, botanical artwork, free to use, no copyright restrictions image - Picryl description

Core making ; Tapping semi-steel furnace.

Core making ; Tapping semi-steel furnace.

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description