The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A comeback for you: the popular Escheresque, now in black.
Source Patten
Plywood Web Background background image for use in web design.
Source V. Hartikainen
Oh yes, it happened! A pattern in full color.
Source Atle Mo
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
Prismatic Abstract Line Art Pattern Background
Source GDJ
Prismatic Geometric Pattern Background 2 No Black
Source GDJ