Windmill Operates Like A TurbinePopular Science November 1935 https://pulpcovers.com/wp-content/uploads/2018/11/Popular-Science-November-1935.jpgvia info headinginfo contentvia
There are tons of Popular Science covers on Google books… https://books.google.com/books/serial/ISSN:01617370?rview=1&lr=&sa=N&start=840Reply
There are tons of Popular Science covers on Google books…
https://books.google.com/books/serial/ISSN:01617370?rview=1&lr=&sa=N&start=840