Yeah, that's "Nose Grease" to us plebeians and it's just as disgusting as it sounds.
Among the many roles of this miracle product of unhealthy teenager's noses is it's use as a filling / smoothing agent for coins with sketchy surfaces. (also lip gloss!) Who needs eeze-clene or brasso when you can just squeeze out a few drops of nose grease and make your coins shine like new?
Now you might be forgiven for thinking that I'm making this up. After all I am the bloke who started the rumor that the Mexican bird and snake symbol was being changed to include a leafblower. Well, you'd be wrong - it's really a thing. So much so that PCGS have used it as a reason for a "details" grade (altered surf.) on their slabs and have even described it as common. I'll pause for a second while you check your calendars to see if it's April 1st.....
Someone showed me such a coin years ago and at the time I thought it was a fake, perhaps transrayded into Ingrish by those lovable guys at the Big Tree factory who were not known for their accuracy back then. Having thus dismissed it, I forgot all about it until it found a reference to the practice in a most excellent article dating from 2000. (recommended read for the day)
https://www.pcgs.com/news/detecting-doctored-coins-part-2
So I did a bit of further reading and it turns out that it's widely known to have been going on for some years. Why didn't any of these bastards tell me? It certainly puts my vague fears of contracting Hansen's Disease from my beloved Lazereto collection into perspective. If things weren't bad enough, it turns out that one of the only ways to discover a coin treated this way is by smelling it. Still think coin graders are overpaid?
http://pension-cherubini.com/2016/02/01/numismatics-3-weird-ways-crooks-are-doctoring-your-coins/
If it is, as PCGS claim, common then it's very possible that one or more of you reading this are in fact "nose greasers". While I doubt that it's anything most folks would admit to I'd really like to hear from anyone who has done this. We won't be swapping any coins any time soon but I'd love to know the reasoning and the results. I mean what's so bad about a dab of gun oil or WD40?
I believe a new low has been reached, not just for numismatics but for humanity. With each passing year I become more anti-social and more of a recluse, mainly because of Walmart type people but this kind of stuff goes a long way too. Bugger it, I'm moving to Tennessee and living on my own personal bit of mountain.
P.S. I'm convinced that I've seen a slab with the wording DETAILS - NOSE GREASE but I can't find one in a search. Has anyone else seen one of these or recall it having a specific code allocated. Maybe it was one of the non big three?