I have been collecting for 70 years and inherited about 800 pennies. I have finally decided to catalogue my collection. You know, I have often wondered this same question. We must be awful dumb on this subject that nobody wants to answer us or it is so obvious. I would have thought there are tons o...

Hello all, I am curious to find out more about this penny. I have never seen a doubled K on a 1979 Canada cent before, and I have held a few thousand. I can't find anything about it online in the 1979 documentation, nor have I ever seen one for sale. The closest thing I have come to comparing is on ...

Here is the edge...

Bill - it is not raised.

Thanks!

I have another cent here that I'm curious if it is PMD or a strike through?
Is there a way to definitively diagnose a struck through coin verses PMD?
Just wondering, if a coin suffered such a major hit post mint on Rev... would there not be signs on the Obv too?

Thanks!

Thanks, great idea. I do like to be able to say, "that is acid, or cleaned" etc when looking at coins. But yes, you are correct. Get to know the error types, and simply write the others off.

Weird that it's actually overweight, maybe coated?
Like I mentioned, I know it's damage but trying to be better informed on types of damage.
So many coins are passed off as errors when in fact it's damage, it's good to lean on the knowledge and advice from others.
Thanks!

Thanks, it weighs 3.32 g

Good afternoon all,
I am curious as to what would cause this kind of damage to a coin. (over-all, not the rim damage.)
Acid dip? Dryer?
Need to better my knowledge of how some PMD occurs and how to recognize it.

Thanks in advance.

Thanks! It's slightly underweight and size, and the rim is completely flat... it feels neat to hold actually. I'll file it away in my odds and sods!

Hey all, is this considered a dryer coin? I've heard about them, but never held one... look like it may be.
Opinions?

Weight- 3.10 g
D- 19.100 mm
T- 1.320 mm

Thanks.

Thanks for the replies. Let's see what olive oil does. Great suggestion.

Hey all, I'm wondering what is the best way to deal with this 1965 dime. I don't really want to clean it, but I also don't want to store with the rest of my (non-corroded) silver dimes... what does one do with such a corroded (but silver) dime? ... and since it's a junk coin anyway, should I clean i...

75% filled would be a sight to see. And as I mentioned I don't really hold onto too many US cents... and I have never sold any of my collection - although I should think about it. So thanks for the insight and I will keep this one in my scantly filled US box.

Good afternoon, I have this 1980 D Lincoln cent, in pretty rough shape, but it seems to have a lot of die filling. I don't really collect nor know much about the US cents but they fall into my lap on the regular as I am a CAD small cent and CAD nickel collector. Is it pretty normal for the US cents ...

Hey all, So I have this 1989 D Lincoln Memorial cent. I understand MD, and worn dies, but this stood out, so I thought I would pop it up here. What do you think? I figure on MD it would affect more than single numbers or letters. It's pretty zinc bubbly otherwise.
Cheers