From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
Prismatic Hypnotic Pattern No Background
Source GDJ
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
Retro Circles Background 7 No Black
Source GDJ
Abstract Tiled Background Extended 6
Source GDJ
Prismatic Curved Diamond Pattern No Background
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin