From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
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
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin