Are these listed in collections and how do you find them. Specifically I have every Proof/Mint set US from 1953. How would I enter that into my collection?
You have to open a coin page you know was in a Proof/Mint set and see what years exist with sets. Any that don't exist you'll have to create if you want to add the set. For example, US One Cent 1959 to 1982 from the coin page list:
Here is a more complete list I did awhile ago. There may be some more added since then so if one you want isn't there check on one of the coins' pages.
I have been meaning to add the 1950 - 1955 USA Box proof sets and 1955 flat proof set. I just keep forgetting to go and get them to take pictures to add. I will try and remember to do so next week.
I have just added the 1950-1954 box proof sets and the 1955 flat pack proof set. Sent a CR for the 1955 proof set that was a picture of the box and flat sets, waiting for referee approval. I could not add photos of the coins from my 1955 box set because it has never been opened.