Machine doubling occurs during striking. The dies were most likely loose, and as they struck the coin, they shifted slightly, kind of "skipping...
Looks like machine doubling. keep up the hunt!
1989 was the last year (at least for cents) that a coin could have an RPM. The mint started adding the mintmarks to the master die in 1990.
The "piece of metal" is, in better terms, a die chip. The piece of the die in between the B and E fell out, leaving a cavity, so when the coin is...
Looks like you've got a winner. It isn't the big 001 for the year, but check 1DO-002 and 1DO-007 on coppercoins.com. Congrats!
I wouldn't think so. Starting in 1990, the mintmark was added to the master die, therefore eliminating the possibility of a coin to have a...
Could be a possible clash. Here is what a die clash is: http://error-ref.com/Die_Clash.html
For whatever reason, I can't seem to enlarge your photos. I am not seeing any evidence of a doubled die. Machine doubling was very common in 1972,...
Without any notching or separation on the bottom, I don't think this one is an RPM. There are still undiscovered ones out there, though. Keep up...
Nice one. BIEs were common in the early 1950s for some reason. Yours is a relatively large one. Keep up the hunt!
Could be a small die crack, maybe an errant gouge, a slight chance of it being a die clash remnant (not likely). Certainly nothing to retire on....
Sorry, the coin is a large date. There is no RPM as this is a philly coin. there was engraving doubling on the date in 1960, which might be what...
A cud is a die break that is connected to the rim, so it can't be a cud. It does not have the look of a die break. I am almost nearly positive it...
The dimes are misaligned errors. Not sure aout the differences in thickness.
The zinc rot on the top of the obverse is gonna impact it. I'm not good at grading though...so I don't know what I would give it.
1970-S only had 1 mintmark style, the MMS-008: tall mintmark. Confirmed by both varietyvista and the lincolncentresource.com.
Can't tell if the first coin is PMD from soldering or if it is a CUD. the second coin is a large elongated plating bubble. Not a real error. keep...
Looks like a piece of glue or something. a CUD is a die break that is connected to the rim of your coin, which is not what you have.
Nope. Mintmarks were hand-punched until 1990, meaning that different coins can have different mintmark locations. Keep up the hunt!
Position doesn't look quite right for OMM-001, and I don't see any evidence of a D/S.Keep up the hunt!
Separate names with a comma.
