From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
A seamless web texture of "green stone".
Source V. Hartikainen
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Colour version of the original pattern.
Source Firkin
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Prismatic Geometric Pattern Background 2
Source GDJ
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin