abstract background blue diamond free image iron old painted peeled photo plate rust rusty stock texture weathered bridge decay grunge industrial industry metal Portland rivet rivets steel Steel Bridge truss black burst chap crack fissure fracture oil paint pattern split tin tinware white autumn brown copper fall leaf leaves natural nature red russet tawny vine Vitis yellow agate brick cement Dirt dirty granite hard moss outdoor rock sand stone cut dust dusty gap gaps handsaw pile power saw sawdust tree trees trunk wood