no wonder we are not getting any results these days on verdigris. the sciene team is busy recreating the wheel instead of spending time to come up with breath taking technology
Spock, The secret formula for killing verdigris was bought up by the TPG's conservation companies years ago and the inventor was eliminated. That is why it is kept hush.:secret: Modern verdigris is actually nanobot transmitted as you suspected, as much as 50 M from the mother pod ( NTVD) Nanobot transmitted Verdigris Disease. They metabolize certain sulfur containing amino acids from dust mites and organic material, to damage the coins. That is why you need vacuum bags! Darn, the eggnog is empty. Jim
You tell him, Jim. That's exactly what I was thinking. I knew it was those "lousey" dust mites. :whistle: And Spock, If you collect anything other than GOLD, you should be worried about coin deterioration. Bruce
Good idea Jim! However since I don't have full red Fugio cents to worry about I'll keep throwing my worn SLQs in coin tubes Bill
Oil in PCGS slabs? Pardon what may be an obvious question. Can you elaborate on the 'oil in PCGS slabs' reference. I have not heard of this before. Do they have some lubricant/preservative in their slabs? Any idea what they use? There is no such thing as a stupid question: just good questions asked by stupid people.
Conder101 can probably provide a better answer, but if I recall PCGS uses some kind of oil either as part of the process for sealing the slabs or to aid in pushing the 2 halves of the slab together - can't remember exactly. But I do know that it is not uncommon to see a thin film of oil in spots inside the PCGS slabs.