FOUR A. E. BACKUS FLORIDA LITHOGRAPHS: All prints measure, 24'' x 28'', have A. E. Backus COA attached verso, and are unframed, 1) ''Glades Marsh - 2000'', numbered 417/1000, 2) ''Up The Shore - 1952'', 908/1000, 3) ''Mangroves - 1987'', 184/1000, ''Royal Poinciana - 1977'', numbered 409/1000.