A tughra is a calligraphic

Calligraphy

Calligraphy is a type of visual art. It is often called the art of fancy lettering . A contemporary definition of calligraphic practice is "the art of giving form to signs in an expressive, harmonious and skillful manner"...

 monogram

Monogram

A monogram is a motif made by overlapping or combining two or more letters or other graphemes to form one symbol. Monograms are often made by combining the initials of an individual or a company, used as recognizable symbols or logos. A series of uncombined initials is properly referred to as a...

, seal

Seal (device)

A seal can be a figure impressed in wax, clay, or some other medium, or embossed on paper, with the purpose of authenticating a document ; but the term can also mean the device for making such impressions, being essentially a mould with the mirror image of the design carved in sunken- relief or...

 or signature

Signature

A signature is a handwritten depiction of someone's name, nickname, or even a simple "X" that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory. Similar to a handwritten signature, a signature work describes the work as readily identifying...

 of an Ottoman

Ottoman Empire

The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

 sultan that was affixed to all official documents and correspondence. It was also carved on his seal and stamped on the coins minted during his reign. Very elaborate decorated versions were created for important documents that were also works of art in the tradition of Ottoman illumination

Ottoman illumination

Turkish or Ottoman illumination covers non-figurative painted or drawn decorative art in books or on sheets in muraqqa or albums, as opposed to the figurative images of the Ottoman miniature. In Turkish it is called “tezhip”, an Arabic word which means “ornamenting with gold”...

, such as the example of Suleiman the Magnificent

Suleiman the Magnificent

Suleiman I was the tenth and longest-reigning Sultan of the Ottoman Empire, from 1520 to his death in 1566. He is known in the West as Suleiman the Magnificent and in the East, as "The Lawgiver" , for his complete reconstruction of the Ottoman legal system...

 in the gallery below.

The tughra was designed at the beginning of the sultan's reign and drawn by the court calligrapher or nişancı

Nisanci

Nisanci was a high post in Ottoman bureaucracy . The word nisancı literally means court calligrapher or sealer and the original duty of the nisancı was to seal royal precepts.-History:...

on written documents.