artdetails:Tughra (Official Signature) of Sultan Suleiman. Istanbul, Turkey. c. 1555-1560. Ink, opaq
artdetails:Tughra (Official Signature) of Sultan Suleiman. Istanbul, Turkey. c. 1555-1560. Ink, opaque watercolor, and gold on paper. -- source link
#biblionerdery#calligraphy#illumination