Some close-up / macro photos of weathered wood with a greyish patina:
(Just for anybody new here - you can download images by clicking on the prevs. and use them for free in your designs, but please don´t re-sell or re-distribute the photographs - these are free royalty-free stock images but not copyright-free photos).
Some wood, if not treated, developes through weather and sun a beautiful silver-grey patina, actually this surface is protective; I have see a wall made from raw Northern pine aging over 10 years, and although it was fully exposed to rain, wind and snow the wood was absolutely fine (it could always dry off completely, though).
