No mintmark question

Hello can you please tell me or show me the difference between a No S proof penny and a No P proof penny?

 

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In 1990, proof cents were minted only at san francisco. You asked about a 1990 No P proof penny but none of the pennies had a 'P' mint mark that year (Philadelphia doesn't use mint marks on pennies). The reason the first coin below is valuable is because it was minted in San Francisco but lacks the 'S' mint mark.

A good way to distinguish the No-S proof from a regular Philadelphia cent is to look at the field (background) of the coin. The proof coin will have a reflective mirror-like surface unlike a normal cent.

Valuable coin:


Normal coin:

 

Do you think that you have a 1990 no s proof?

 

Along with all the other people that come here from the youtubez thinking they are instant millionaires

 

Well I purchased a proof sey yesterday with a 1990 no s, no p penny so I did some research and it said that the Philadelphia penny was minted but it should have had the S on it so I was confused about

 

Do you have pictures? And can you please refrain from saying no "P", because that doesn't make any sense.

 

No not necessarily true. Just new collectors trying to understand the hobby

 

I don't think he was trying to insult you with his post, but your claim is very unlikely and most new members are usually mistaken as to what they have. If you can post some pictures, we can help you determine whether or not you have a valuable coin. My question earlier was simple: Do you think you have a 1990 no "S" proof?

 

Not trying to insult. We just see a lot of the same questions over and over again.
If you think you have one, post it. Just try not to get your hopes up if it isn't what you think it is
Learning is always good though so ask away

 

Please post a photo of it. If it is a proof set with a no s cent you have something. If it’s a mint set you don’t. We would need to see a photo of the set and of the coin to know for sure. Please post photos and we will help you.

 

Can we see pictures of what you have? How much did you pay because you may have been ripped off if they seller told you it contained a "1990 no-s proof".

 

Oh ok so a proof set is different from a mint set? I purchased a proof 1990 s which looks diffrent from the set. Here are the pictures;

 

That is a normal uncirculated cent. Sorry but it's definitely not a proof if that's what you thought it was.

What you have is an uncirculated set. It contains coins that were struck the same as all the coins in your pocket change.

A proof set is different because the coins are made with more care and craftsmanship. The coins in a proof set will have a mirrored surface (like the coin you have in the paper holder). Proof coins also have sharper details and box-like rims.

 

The token in that set tells exactly what it is, an uncirculated mint set.
This is what a 1990 proof set looks like:

 

Ok thanks to everyone for all the responses I must say I am thoroughly enjoying this learning experience! Happy hunting

 

Ok thank you. I have that set in the 1991and your right it says proof set right on it! The other one says nothing and the coins do look different! If I had only looked. Thanx again

 

Look again.

 

Be careful. It’s addicting.