Hi there. I'm new to the forum and don't know much about vintage playing cards. I did, however, recently come upon these four packs of unopened Blue Ribbon 323 playing cards made by the U.S. Playing Card Co. in Cincinnati, Ohio. I'm wondering if someone can share some information about these cards. Interested in history/background, possible date of production, estimated value, etc.

Any help would be much appreciated. I searched the forums but didn't come across too much...if I missed a previous post, please let me know.