Just a couple of questions about some Mercury Dimes I saw online: First, what the heck caused this, really worn dies? Secondly is this a FSB?
Yes,and maybe?? The specimen shown was struck with a worn die, full ban maybe ,depending on who grades it...it's close but I'm not seeing a total split on that middle ban.
Q: with the horizontal marks from the cheek, chin, fields all the way to the L in Liberty and down to the IN GOD; aren't those related to cleaning marks ?
Yes Paddyman, that Mercury does make them shine. A dealer tried to sell me a beautiful collection, older coins in excellent shape, but they had shined the coins with Mercury. I think they ruined the coins - at least for me.
You would think the dealer would know the coins were ruined if mercury was added to them, and why would he even have such a thing for sale?
In this case, I don't think so. You see die wear from the metal repeatedly flowing across the surface of the die also creates lines just like that. And since the lines are also on the devices in some places I think that's exactly what they are. As for the 2nd coin being FB - not in my book.
As, I look at that strike. I see a coin that hit the sander after a clash, the polish lines run through the devices, yes, it is a late die state, but, MS, non the less.
Definitely a die freshened up after a clash. You can tell by the elevation of the upper bridge of the nose compared to the adjacent field. And, a '45-P FSB is not an easy one to come by.
BTW, they are two different coins. I was just looking at the obverse photograph and wondering what caused that wavey line watery effect. Almost hurts your eyes when you enlarge it. The reverse is of a different '45 dime, but that is about as close to a fsb as I have seen on a merc. To be honest, it was only $14 and I jumped on it. When I get it, I'll try and post some pictures. This might be the first coin I have had that I would consider slabbing.
It is impossible for die polish lines to be on the devices - simply can't happen. But wear lines on the devices from metal flow, those happen all the time.