These textures are 100% genuine scans from sources over 200 years old. It doesn't get any more authentic than that. Each German paper has been stained through the ages and will give your work an old world feel in no time. There are 27 textures included, and they are perfect for anything vintage. There are personal letters, accounting ledgers, sheet music, and more, giving this bundle a range of different uses. The textures in this set are well over 6,000 pixels in size so can be used for both print and web without worrying about any loss in quality.

https://creativemarket.com/DesignPanoply/90741-18th-Century-Parchment-Textures-1