It's Fleischmann's Rye, a straight rye whiskey made at Tom Moore (Sazerac's distillery in Bardstown). It's the only straight rye they sell, only sold in northern Wisconsin, only in handles (1.75 L plastic bottles). It's not great (too young), but not bad. It's cheap.
Fleischmann's is an old brand that has passed through many owners. There is a Fleischmann's Preferred American Blended Whiskey that is more widely distributed but apparently the rye sells well enough in this one part of Wisconsin to justify its continued production.
I wonder if by "premium taste through the years" they mean "but not right now."