Very interesting. First research if the 1984-D, D mint mark is correct for its die characteristic. Once that is determined, is your D correct. We know it is not a dropped letter mint error since the D on a cent is raised and if the mint mark filled with metal and grease and then fell out, it would be incuse in a struck planchet rather than being raised. Do not remove it in any way. It could be a D product of a filled mint mark which was dislodged from the die. How it was retained on your coin makes it very interesting since many cents would have fallen on it and it would have been dislodged. I have never seen the original dropped letter from a die that would create a dropped letter mint error. It is a complicated study in dropped letter mint errors. How the die filled with grease and metal? How the filled letter dropped from the die? How it was picked up by the die striking it in a different position and creating an incuse mark in the die? How that die struck a planchet? How many planchets were struck before the die wore to the point no dropped letter is visible? Is there any indication at all that your cent is a 1984-D? Lots more questions to be asked on this coin including a close up of the letter. Paddy's shirt, " I LOVE it when MY WIFE lets me buy coins".
Well, sometimes they act like refrigerator magnets & you have to slide them back into position. You never had to do that?
Yes! Funny.. One day I'm going to take a very sharp blade and try to cut out a D Mint Mark from a post 1982 Cent just to see how it would look! Obviously there would be a hole with the Zinc underneath showing through!
That 'your dog is ugly, too' is just a random opinion..a second opinion. Just happens not to have anything to do with your coin or anything coin related. You probably don't even have a dog? Lol. Get it? Sort of funny, no?
Just curious. If it was a mint mark filled with grease and metal and then fell out, wouldn't the D mint mark still be under the date?
You would think so wouldn't you I sent it to heritage online and they are the ones who said it was a falling mint mark
Perhaps you misunderstood my question. What I was saying is that the mintmark is already on the die. When it fills with grease, metal, or anything else, then it falls out, the mintmark is still on the die. when the coin is struck the mintmark would appear on the coin. your coin doesn't have a mintmark. Therefore I believe your coin was minted in Philadelphia. The mintmark is incuse on the die and so I don't understand how it could fall off. If I'm wrong I think a more experienced member will correct me.
Well I think I'm going to take stacksbowers and heritages word when they confirmed it was a falling mint mark or a misplaced mint mark
No I didn't buy it from heritage I sent the penny to them they confirmed it was a falling mint mark and stacksbowers confirmed it to
There seems to be factors that they are missing, but after all they are only auction houses. Not a company that handles and attributes errors. I am not saying it's not possible. It would be more acceptable to see it attributed by @Fred Weinberg or reputable company that handles these type of coins on a regular basis.
Between January 31st and February 8th you sent it to Heritage, they attributed it, sent it back, then you sent it to Stack's and Bowers, they confirmed it and sent it back to you?
No I didn't send my coin to either one of them I just emailed them a pic of the coin and they gave me there opinion on it