From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!
Source V. Hartikainen
Prismatic Abstract Geometric Background 4
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Prismatic Abstract Background Design
Source GDJ
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Retro Circles Background 7 No Black
Source GDJ
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Colour version of the original pattern.
Source Firkin
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Black And White Floral Pattern Background Inverse
Source GDJ
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
A version without colours blended together to give a different look.
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ