1960's Milky's Party Time Sparkling Beverages Soda Advertising Flange Sign

Metal flange sign, probably from the 60's, advertising Milky's Party Time Sparkling Beverages.....never heard or seen one! This sign has some rust in spots, but looks like it was never out in the weather. So, it may not have ever been hung. Marked Stout Sign Co. St. Louis. The main part of the sign measures 12 1/4" x 10". The flange is 1 1/2" wide with 5 mounting holes. Sold with no reserve. $11.35 flat rate priority mail shipping.