ADAMSON, Neil, (American, 20th Century): Three Lithographs: 1) ''Blue Shell'', featuring a Crab, sight size 12.5'' x 15'', numbered 239/300 lower left and pencil signed, custom framing, 20'' x 22.5''; 2) Endangered Species, sight size 14.25'' x 11.5'', pencil signed lower left and numbered 442/650, framed, 23.5'' x 21.5''; 3) Low Tide Scene at the Docks, sight size 16.5'' x 12.25'', signed lower left, numbered 154/450 lower right, fine custom framing, 26'' x 22''.