DescriptionDiagram of Schiller Station Mercury Vapor System.jpg
English: Diagram showing the mecury vapor turbine power generation system at Schiller Station, Portsmouth, New Hampshire, USA. From the booklet "...your Visit to Schiller Station", produced by the Public Service Company of New Hampshire.
Date
Source
publicity booklet designer is unknown, image taken by Dr00bie
Author
publicity booklet designer is unknown
Licensing
Public domainPublic domainfalsefalse
This work is in the public domain in the United States because it was published in the United States between 1929 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.