Coins weigh 17.4g (8/21)
Coins cooked for about 13 hours and I gave them a quick toothbrush. Weight is now 17.1g. (8/22)
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CROCKPOT With Hydrogen Peroxide | ||||||||||||||||
| I have tried
hydrogen peroxide soaks at room temperature, and received slow but decent
results. Let's try some heat. I finally got the crockpot cleaned after the
last experiment, and hopefully it won't smell. Coins weigh 17.4g (8/21) |
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| All of these
coins have a problem, such as being chipped, partial patina, encrustation
etc. I doubt heat will have much effect, but there's only one way to really
know for sure. Coins cooked for about 13 hours and I gave them a quick toothbrush. Weight is now 17.1g. (8/22) |
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| After 24 hours, coins now weigh 17.2g, so somehow I gained 0.1g. It still seems to be removing a good deal of dirt. It seems to be starting on the tar like substance on the coin that's in the bottom left cornder of the scan above. In the scan above, the coin in the top middle is showing a little details. The dirt on this thing is almost as if it was wrapped in clay and stuck in a kiln. It is extremely hard, and even my dddp will barely scratch it, using alot of pressure. Going to throw them back in for a couple more days. I probably should buy some fresh hydrogen peroxide for the experiment. The scan below is after 36 hours total. | |||||||||||||||||
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