Laser cleaning a coin. Your browser does not support the video tag. Previously: Making a coin ring - GIF Spy coin - photo Coin countertop - photo Polishing a tarnished coin - GIF How vending machines sort out fake coins - GIF Stacked coin separating trays - GIF
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desbromilow (Sep 6, 2021), nova_robotics (Sep 7, 2021), tuchie (Aug 5, 2023)
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