the pinion gear old mechanical device |
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| navigate by keyword : ancient barb carving claw clockwork close cobweb cog cogwheel connecting development device drive dust dusty engine gear gearing gray helical helix iron machine machinery macro mechanic mechanism metal metallic motion notch old paint painted pinion platen prong retro roll spiderweb technology thread tooth toothed transmission wheel wood |
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| The pinion gear of an old mechanical device . |
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