How much is a 1978 and 1981 united states proof set worth?

Hi, jodiesgirl!

I've moved your question out of Other Money & Services to Collectibles, so that it will be more likely to be noticed and addressed by our Coin and Currency Expert, Flying Blue Eagle.

He has the current documentation concerning the possible monetary value of those types of collectibles.

Thanks!

jodiesgirl - i need to kn ow what mint mark is on the sets?? :: the issue price for the 1978 was $9.00 the 1981was $11.00 note on the 1981 it should be a {s } mint mark;;and on the 1978 the mint mark should be a {s} also but there was two different ones strick in 1981 {s } one had a filled {s mint msark} and a clear {s mint mark} . I need to know very bad before i can give you the full answer <because og the {s} mint marlk , so on the 1981 you need to look at it extreemly very close {note -the ( s ) mint mark :witha mag glass if you have to :: waiting your answers to my questions that i need :: have a great day and god bless ::f.b.e.