This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
A seamless pattern formed from a rectangular tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.
Source V. Hartikainen
Background formed from the original with an emboss effect.
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin