Building an electrolysis kit to clean ancient coins

DIY Cleaning Antique Coins Via Electrolysis

After-Electrolysis Coin Preservation

DIY Cleaning Antique Coins Via Electrolysis

The Best Ways to Clean Metal-Detecting Finds - HobbyLark

How to clean old coins – Discover Metal Detecting

What do you guys do with all your zinc pennies? I have so many that are just so badly corroded that I don't know if I should just throw them away.

3 Ways to Clean Ancient Coins - wikiHow

Electrolysis Coin Cleaning Kit - with full instructions & Keyring !

Ugly Box Electrolysis Unit - Coin and Relic Cleaner + Stabilizer– Serious Detecting