3 Hours and 2 silvers

[alun]

Been searching this permission for a short period of time, which has poduced dozens of buttons (which i may send onto legio)  Today produced two pre decimal silvers and a few degraded coins.
Any idea of how to clean the coins effectively with minimum damage? I used electrolysis on modern and pre decimal, but avoiding using on the older finds. Suggestions would be appreciated.

[Dryland]

nice one Alun , almost identical to my finds today

[alun]

Thanks buddy, but do you have a effective method of cleaning up the old coins with limited damage?

[Dryland]

I wish I did, I've ruined a lot of coins experimenting

[alun]

Thanks bud,, same boat then

[probono]

Silver coins are quite easy to clean.

Any sort of acid will clean them up (coke for instance), but clean them in warm water with a sponge afterwards.

If they are still black, use a variation on the spit and foil method. in this case wrap the coin loosely in foil and put it into a solution of hot water and washing soda (I usually use a plastic tub and poor boiling water on to the washing soda). Again clean coin afterwards with water and a sponge.

Copper coins are usually too far gone to do anything effective with them.