49H Oil Derricks, Ivory with 4 holes, silver sage with 2 holes, small incised mark, oval “o” on both pieces. Stickers “Souvenir of Bagnell Dam.” Interesting Type 1 pair with two glazes. The Derricks are where Frankoma most commonly mated two glazes in a single pair. Gary Schaum on page 94 of his book, Frankoma Pottery, shows an identically glazed pair without the sourvenir stickers.