From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
Seamless Green Tile Background
Source V. Hartikainen
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Gold Triangular Seamless Pattern No Background
Source GDJ
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida