Polishing a tarnished coin - GIF

Polishing a tarnished Japanese coin.

<video controls autoplay loop> <source src="https://s3-us-west-1.amazonaws.com/hmt-forum/polishing_japanese_coin.mp4" type="video/mp4"> Your browser does not support the video tag. </video>


Previously:

https://www.homemadetools.net/forum/...674#post143548
https://www.homemadetools.net/forum/...460#post135644
https://www.homemadetools.net/forum/...005#post129748

Never clean and/or polish a collectible coin or medal.

what was the first liquid? - I am assuming the subsequent numbers were diamond grit polishes, but the first liquid appears to have some effect from the moment it touched the metal.

Totally unbelievable... Woodie has better things to do than to waste his time polishing a coin!