Pleasantville Venturi meter. ... Contract 55. August 22, 1911.
Summary
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Tags
Date
1918
Contributors
New York (N.Y.). Water Supply Board, Compiler
Location
New York
Source
New York Public Library
Copyright info
Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")