Ülgen, Ali Saim. Constantinople : During the era of Mohammed conqueror 1453-1481/ Ali Saim Ülgen. - 50 p. : ill. ; 27 cm.. - Turkish Foundation Deeds ; II. . - Turkish Foundation Deeds ; II.. . Bibliographical references. Subjects--Topical Terms: Architecture, Byzantine--Turkey.Architecture--Turkey--Istanbul.Mimarlık, Bizans--Türkiye.Mimarlık--Türkiye--İstanbul. LC Class. No.: NA 1370 / .U4