Yvert 1, 1938 Rio Philatelic Exposition (Rowland Hill), normal souvenir sheet (imperforate) + with variety (PERFORATED), very few known examples, mint without gum, fine quality, very rare! (Image)

Lot of souvenir sheets of varied periods, some are scarce, HIGH CATALOG VALUE. Used or mint without gum, some with minor defects, most of fine quality, good opportunity! (Image)