Beer Mug ~ I'm Nuts About You ~

A nice clear glass Beer Mug with a Heart with an Arrow going through it. The Heart has the words "I'm Nuts About You" and smaller hearts surrounding the words. The bottom of the mugs is marked with " D, O, 89 and 14". I do not know who produced this mug. The beer mug is 7 inches tall and has a top diameter of 2 3/4 inches and a base diameter of 3 1/4 inches. This Beer Mug is in great shape with no chips or cracks.