What are those extra coins called in the mint set, i.e. like a 1984 mint set ??? Does anyone save them? Are they worth anything? Please advise... Thank you...
I collect them and callthem "mint set tokens". There are hundreds of different tokens that have been used by world mints in mint and proof sets. Most are very simple but some are attractive and complex. Many are dated. Those used in the '84 to '98 US sets are exceedingly common. Unless you can find one struck on a penny or something there will be very little premium.
I see, learning more everyday... I saw someone at a coin show fill his "empty holes" with 'em.. actually looked pretty good!
I filled the extra holes in the Dansco Ike book with the different 1972 types, and the remaining one with an Ike 40% Unc. packaging token.
They're really an interesting collection. They tend to be a little frustrating though because some mint and proof sets lose almost all their value if you cut them up. Many others become very difficult to sell. I'm looking at a rare Sudanese proof set that has a little paper token in it. The set isn't worth a great deal but it's highly desirable and very low mintage. If I remove the token I might lose a huge set premium that developes in the future but if I don't remove it I'll probably never have this one for my collection. Many of these sets have tiny mintages and the tokens can be quite insubstantial and made out of foil or paper. Others are just boring and will get tossed in the trash. This is a collectible for the future really. There will be numerous rarities. Nonwe of the US tokens are likely to get much value. There are some interesting ones like the '82 proof set token and there are the '76 P & D souvenir set tokens that are likely to get some interest. These latter ones are low mintage big heavy tokens (medals as well in this case since they commemmorate the bicentennial and Colorado centennial) that will get demand before too long. The foil proof set tokens have exceedingly high attrition but the mintages are just too high. There are remarkably few varieties in these tokens.
Here's what you need to do: Buy another set, since they are reasonably priced right now. Then pick the best of the two to keep intact for your collection. Then hack up the other one for the little paper token. It's only my advice, but these decisions plague me from time to time also.
I just bought the 2009 US Proof Set at the LCS for $18, in contrast, the 2008 was over $70... The dealer kept saying what a good deal the '09 was, and after seeing the coinage within, I have to agree!