Commemorative Mug, Marked Van Briggle Art Pottery Dated 1909, 6.25 x 5 x 3.5 Inches, Factory Second Commissioned Piece With Experimental Glaze, El Paso Club Annual Dinner, This Rare Mug Is Described In "The Story Behind The Clay" By David And Sharon Swint, Base Chip Below Handle, Very Rare, 1.4 Pounds, Darrell and Sandy Shulte Collection, Kansas.