Libbey blue Mary Gregory glass tumbler 4 3/4" tall

Beautiful Mary Gregory style glasse made by Libbey. Boy, girl, and little dog outdoors frolicking & catching butterflies.Pretty blue color varies according to light. Sometimes looking dusky blue in darker lighter and then to a lighter blue in brighter light. When holding the glass up to light the bottom looks cobalt blue. Measures 4 3/4" tall.Excellent condition. Relief white enamel decoration is pristine. These are from the 1970's and were sold in a Hostess Set. I just have the one.