A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A free background pattern with abstract green tiles.
Source V. Hartikainen
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
This one is amazing, truly original. Go use it!
Source Viahorizon
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
An alternative colour scheme to the original seamless pattern.
Source Firkin
A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.
Source Lazur URH
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics