The description on the front of the card:
High School, Toledo, Ohio,
Estimated Date: 1907-1911 (based on texture, what appears to be hand colored, and simplicity)
Era: Divided Back Era
This building was also known as Central High School.
The Rotograph Co. (based on fonts used and style)
The Rotograph Company, based in New York City, was a prominent publisher and printer of postcards from 1904 to 1911. Founded by Germans Arthur Schwarz and Ludwig Knackstedt, it served as the American branch of Neue Photographische Gesellschaft, renowned for its high-quality photographic products.
Many of their early cards were reprints of black and white or hand-colored National Art postcards and were printed without any letter prefixes. Some of these cards include the Sol Art Prints logo.
This card appears to be in Style E, a view that was printed as tinted halftones with a divided back.
Read more about The Rotograph Co.
Rights Info: Public Domain