From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
This yellow background consists of a pattern of glossy gold buttons arranged in polka dot style on a seamless texture. Here's a pale yellow background pattern. Feel free to use it for your needs!
Source V. Hartikainen
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Fix side and a seamless pattern formed from circles.
Source SliverKnight
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Alternative colour scheme for the original floral pattern.
Source Firkin
Prismatic Hexagonalism Pattern No Background
Source GDJ
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen