1 photo

• Sort by: number of views (most to least) number of views (least to most) number of comments (most to least) number of comments (least to most) number of favorites (most to least) number of favorites (least to most) date uploaded (newest first) date uploaded (oldest first) random

• This is a demonstration unit of a backyard solar heating unit built by the Sunglow Corporation..., 05/1975.

  • Uploaded by: U.S. National Archives
  • License: No known copyright restrictions
  • 0 comments
  • 1 favorite
  • 7,054 views
  • Date taken: 1975-05
  • Date uploaded: 2012-04-10
  • Tags: usnationalarchives, documerica, environmentalprotectionagency, boydnorton, nara:arcid=557336
  • Visibility: public