From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Prismatic Polka Dots 3 No Background
Source GDJ
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
Prismatic Polka Dots Mark II No Background
Source GDJ
An alternative colour scheme to the original seamless pattern.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
The tile this is based on was adapted from an image that was uploaded to Pixabay by frolicsomepl. It can be had in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Prismatic Snowflakes Pattern No Background
Source GDJ
An alternative colour scheme to the original seamless pattern.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Seamless Background For Websites. It has a texture similar to cork-board.
Source V. Hartikainen