Coin questions

Australian coin · July 02, 2015, 06:26:29 PM

yeah but when someone says clean, i just imagine someone rubbing it, or putting fingerprint and wot nots on it, if you knew how to clean or improve it without actually rubbing it, then i don't see a prob, does acetone affect a proof frosting ?

trout · July 02, 2015, 07:07:17 PM

Quote from: 'matttheriley' pid='73975' dateline='1433535038'Trout, amazing 50 cent piece!

That one is over at PCGS at the moment , it should come back PR69 hopefully

JeffH · July 02, 2015, 07:19:03 PM

Quotedoes acetone affect a proof frosting ?

No.

runway · July 02, 2015, 09:28:30 PM

Quote from: 'Australian coin' pid='73905' dateline='1433467005'nope don't clean them, it would only make them worse, actually de-value them more

Good advice

ausjack · July 03, 2015, 03:17:01 AM

Good advice here, now that's funny :laugh2: more like lies lies and then some more lies just to be sure :angel:

Coiny Chris · July 04, 2015, 04:42:04 AM

Hello,

Has anyone tried an Ultrasonic cleaner ? It should loosen mould and stains as opposed to marks left by a chemical reaction.

JeffH · July 04, 2015, 05:51:21 AM

QuoteHas anyone tried an Ultrasonic cleaner?

Yes. My comments can be found here...RE: Tarnished coin cleaning

5 rubles · July 07, 2015, 04:28:27 PM

I placed a glass jar in a cheap plastic "ultrasonic" cleaner, stuck it down with blue tack. Then some chamois in the bottom to create a soft non abrasive bed for the coins topped with about 2cm of acetone. That speeds up the cleaning from 5 hours to 15 minutes for the same result. The cheap cleaner does not really oscillate at ultrasonic speeds but keeps the liquid in motion to enhance cleaning action. The acetone gets dirty so it has to remove something from the coins, mainly PVC.

qman69 · July 07, 2015, 09:56:41 PM

hmm...i might crack open the 1970 proof set and try acetone on it.. whats the worse that can happen? :dodgy: