Crescent Lake in Olympic Peninsula Postcard 1939 "See The West With 76 Gasoline" For Sale

This vintage postcard from 1939 features a stunning view of Lake Crescent in the Olympic Peninsula of Washington State. The postcard is an original printed lithograph on cardboard and paper, with a divided back and chrome features. The size of the postcard is standard, measuring 5.5 x 3.5 inches.The postcard is a great addition to any collection of topographical postcards or postcards in general. It showcases the beauty of the lake and the surrounding landscape, as well as the theme of tourism and travel. The postcard is unposted and is a single unit in the set. Don't miss out on the opportunity to own a piece of history with this original, vintage postcard.
SELLER NOTE: AT first glance, I was thinking these cards were post-WWII Chromes, but on closer examination and inspection of copyright dates and vehicles you can clearly see these are pre-WWII color postcard.
If you know anything about this series or postcard photographic process or Union Oil's Postcard Series, please let me know as I would love to learn more. Thanks, War Portraits & Postcard.