You have to realize no chemical is 100% pure, no matter how hard you try to refine something, there will ALWAYS be impurities. Mineral oil is...
First off, the results are quite nice, congrats. I too prefer not to have gunk in the devices. Mineral oil should be removed with XYLENE. Oil is...
I have to debate the semantics of the 22 plain strong reverse. I contend it is in fact an error. The dies clashed and workers excessively polished...
Found my second WAM today, better than my first.....too bad I've only found two out of a million boxes.
Mineral oil has no pH. You must have water to have pH (negative log of the hydrogen ion concentration). Olive oil has no pH either, but it does...
Jim - That last bit of verdigris is not going to be removed. I think continuing to use VERDI-GONE™ at this point if futile. This spot will require...
Jim - Your DDO's are AWESOME!
How about a couple more...with these theads there's no such thing as ONE favorite. LOL
39D MS-66+ RD 28 MS-65+ RB I estimate those are the minimum TPG grades I would receive.
They both nice and raw, the way I like 'em! Thanks
I have many favorite though:
One of the finest raw coins I own:
Based on the pictures, that's a pretty harsh grade IMO. I have 63's that are no where near this nice.
Most all albums I've seen include the 1922 plain. Really, IMO, it's a bad decision because it is indeed an error coin. One of many reasons I don't...
Hard to judge from the pictures, but there looks to be a little rub on the cheek, beard and forehead....based on the pics, AU55-58. This coin...
I've never experienced that, but I only use ACS, reagent grade acetone. I only use acetone for drying, I prefer xylene for removing surface...
Yes, but lab time is seriously in short supply for me. It's on my wish list!
MS-64RB, but a TPG could easily take this down to MS-63RB.
Thanks for the welcome! 1) Do not heat VERDI-GONE™. Doing so will degrade the active ingredient and reduce effectiveness. Use at room...
Hello! First off, Jim, thank you for perfoming this test. Being a scientist, I really enjoy seeing VERDI-GONE™ customers doing experiments such...
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