From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
A bit of scratched up grayness. Always good.
Source Dmitry