The ancient EgyptianSingle-Stair hieroglyph, Gardiner sign listed no. O40 is a single staircase in the Gardiner subset for "buildings, parts of buildings, etc." A second full double-staircase is no. O41,[2]
Budge, 1978, (1920). An Egyptian Hieroglyphic Dictionary,E.A.Wallace Budge, (Dover Publications), c 1978, (c 1920), Dover edition, c 1978; cliv-(154) and 1314 pp. (In two volumes) (softcover, ISBN 0-486-23615-3)