 Although there are no surviving records detailing the output of the imperial workshops, it is likely that the potters manufacturing the blue-and-white underglaze painted tiles also made other items for the court.The art historian Gülru Necipoğlu has suggested that an unusual gilded mosque lamp and a decorative ball that come from the Yavuz Selim Mosque should be attributed to the imperial workshop.The lamp and ball have underglaze inscriptional bands in cobalt blue but the mosque itself is decorated only with "cuerda seca" tiles.