I have another question on the ball Bal serif S , is the small or thin part on the top or bottom normally ?
I'm currently hunting for old binoculars now. I'm going to hit up the thrift stores this weekend and see if I can find a cheap set.
After another look under magnification it sure looks like a Ball Serif over a doubled Serif S, the last use of the Ball Serif was 1946 Lincoln's !
Finding that triple "s" alone is pretty cool but if it's in fact a ball serif, that's gotta make your year. I'm excited and it's not even my coin
Okay I understand and not trying to step on anybody's toes here but I'm new to this as I have said.. I like to ask questions and questions get responses which helps me learn, hope there's no harm in that! Wasn't aware we couldn't question an answer, it won't happen again ! Sorry guys!!
I hope I didn't give you that impression. Anyone can question any answer. I take no offense nor should anyone. My explanation, piggybacking on Fred's is the steplike progression of layers. It is unusual, but wasn't produced by the die sinker striking the punch ( in my opinion). I have several of these, and when I get home will post a photo of one. What is discourteous is when a member continues to argue with nothing more than "yes it is", "no it isn't" with little reason. Jim
Is it really triple? or is the middle part of the top one? I'm trying to understand how a triple strike happens. Thanks!
A true over MM will be offset from the main MM, not flatly stacked as on this example. Nonetheless, it's a fantastic example of machine doubling.
Nice coin and pictures. Your MM looks normal imo (except for the MD noted by others) for a 1974, it also looks like it took a hit on the top making it look like a ball. There were two MMs used in 1974. One a Tall S (MMS-008) used on the Large Date and the other a Blob S (MMS-009) used on the small date. There is no additional premium for either the small or large date. Here are a couple sites to help with MM styles. http://varietyvista.com/01b LC Doubled Dies Vol 2/San Francisco Mintmark Styles.htm http://www.lincolncentresource.com/smalldates/1974.html
View attachment 733750 Here is an example of similar MD I found quickly, a 1969-S . I do not have time to change the dimensions, so if too large I am sorry. Jim
That is a very interesting mint mark. My theory would be that the mint mark sinker did the first sinking to light into the die. Then the sinker noticed this and tried to sink it deeper but was off register south by a bit. Noticing that the sinking was still not deep enough, the sinker made one final try and was off register south again. Each sinking is incuse into the die. The sharpness of each edge may suggest a triple RPM. It will be interesting to find more cents exactly like this from the same die to confirm a triple RPM. I would research online triple RPM in other denominations. Research John Wexlers books for more detailed information. Double dies such as the 1955 or 1972 are sunk at the same height but off register. Hand sunk mint marks sunk lightly and then sunk again off register and then sunk again off register could look like your coin. Remember hand sunk mint marks could have been sunk many times to bring up the mint mark and any off register would produce RPM's
Here is a good starting point for learning about this subject - Wexler is an expert http://doubleddie.com/144801.html