abstract background Dirt dirty metal metallic panel panels rust rusty sand sanded spoil spoiled steel texture copyspace down drain drops fawcet hole kitchen plug silver sink tap water wet cog corroded corrosion decay desuetude gear iron machinery old spindle teeth tooth turn wheel winch ancient Catalan catalonia Catalunya communicate door historical knocker rusted Spain spanish studded wooden cover non-skid oxide plate ridges San Francisco sidewalk surface urban 1950 1960 50's 60's fuel gas gas station gasoline pump sale station urban decay city dark grunge grungy metal plate red rusty metal rusty plate rusty texture