Image: Holyoke Testing Flume seen from exterior c. 1895

Description: The Holyoke Testing Flume, as seen from across one of Holyoke's canals.
Title: Holyoke Testing Flume seen from exterior c. 1895
Credit: The Story of Holyoke
Author: UnknownUnknown
Permission: This work is in the public domain in the United States because it was published in the United States between 1926 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No