rusty gear

abstract antique background bolt bolted bolts business circle clock close cog cogs cogwheel component construction dent design detail deteriorating deterioration device disrepair engine engineering equipment external factory gear geared gearing gears gearwheel grunge industrial industry interior interlocking iron machine machinery manufacturing mechanic mechanical mechanism metal neglect neglected old oxidate oxidation part power precision retro ring round rust rusted rustic rusty sprocket steel team technology teeth texture tools tooth toothed toothwheel turn turning unserviced unusable unused vintage watch wheel wheelwork work