All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A free pink background pattern.
Source V. Hartikainen
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
The base gradient edited so now more details are rendered.
Source Lazur URH
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen