From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
A new take on the black linen pattern. Softer this time.
Source Atle Mo
From a drawing in 'A Rolling Stone. A tale of wrongs and revenge', John Hartley, 1878.
Source Firkin
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem