2025-10-172025-11-172025-10-172025-11-17https://openaccess.ircica.org/handle/123456789/268045 black and white negativesYeraltı Mosque (Beyoğlu)-İstanbulMahmud I, 1696-1754Tughra (Turkish royal cipher)Mosques-İstanbulMosques-TurkeyGalata Yerebatan Camii'nin (Kurşunlu Mahzen) giriş kapısı üstünde bulunan I. Mahmud’a ait tuğraPhotograph