The Hugh C. Leighton Company was a major publisher of view-cards, particularly New England views. They printed in four distinct styles most often employing tinted halftones.
"Picture postcards helped spread information about [Maine's] beauty and points of interest, and it was a Portland man who first brought such postcards to the United States."
“The Hugh C. Leighton Company, Portland, Maine,” Southwest Harbor Public Library, accessed January 19, 2021, https://swhplibrary.net/digitalarchive/items/show/9238.Item 13251
