Any of these cards worth something?  This is just a hand full!?
931647
Take it to a sports collector store and and get them appraised.  You could also buy a Beckett magazine.  They have the values of cards.  It is hard to say the value of a card without knowing the year, maker, condition, and card number.
996837
Listing has pictures\n10 - 1991 Pedro Martinez Upper Deck Rookie Cards\n $55.00\n\nI've seen some cards only worth one cent but this was the highest I saw. I don't know what card you have or the year or the quality but here is what I found.
875340
get on e-bay and see what they are going for??? \n\nme dads just sold a set of old civil war cards for a lot of dosh!!!!
591048
I don't know about those, but some reprints can be worth money. I have a Mark McGwire 1985 Topps Team USA Card reprint that is worth somewhere around $10-$15. Of course, the original card is worth around $250.
871753
You can check on ebay for the market price by seeing how much others have paid for it. But I'm sure there are lots of people who will want that card.
461399
It will depend on many factors.  If the card is rated, if so whats the rating, which card maker it is (DonRuss, Top Flight etc.)  Another thing to consider is the fact that card trading has been down the last few years. So, with that said, his card 4 or 5 years ago for a good card maker, and a real good rating would probably be worth a lot more that it is today.
447840
Not a whole lot.  I've got one too.  If you look on Ebay, you can see what they are going for.
77984
i, too, would pick up the most recent copy of beckett's price guide. it is generally regarded as the leader in accurate sports card value. in the meantime, protect these cards and keep them in the best condition you can. whatever you do, don't choose the path my dad chose and put them in your bicycle spokes to make noise!
116769
Probly the first thing you want to do is buy a baseball becket(a card pricer) and see if the cards are in there. I hate to break it to you, but most baseball cards are worth a penny a piece. To be honest, i thought that the really old baseball cards were worth hundreds, but in my local baseball card shop, they were a nickle each.  But there are some cards that are worth many thousands of dollars. I suggest going to your local card shop and have someone there look at them and have him tell you how much they are worth.(My dad always says:"there only worth as much as someones willing to pay for them.")
246425
I'd try Ebay. You can do a search there and see what other people with the same cards are selling them for and see if it's worth it to you.
399169
Short answer: no.\n\nLong answer: not a chance in hell.\n\nThat's not a rookie card, it's probably not in mint condition, and wouldn't be worth more than $10 or $15 anyway.  My guess is $5.
1014142
You should really try to get a collector to take a look at them.  Don't send them, bring them in person and don't let the person keep them overnight or anything like that.  They may have a substantial collector value.
870428
A 1952 Mickey Mantle rookie card in mint condition according to Beckett Book is worth $37,500.00.  I don't know if you're kidding or you really don't understand the value of that card but my information is accurate.
594396
I've included a bunch of links with card value.\n\nMatt
238455
True, the newer releases of Mantle cards are not worthless. They are insert cards and usually have value over $1. It's probable that the 2006 release, like the 1996 release, commemorates the anniversary of the Mick's death, and so might be made in scarcer quantities to generate more interest. \n\nYour question is, however, quite ludicrous, I'm sorry to confess. "...From lets say 1951"? The 1952 Topps and 1951 Bowman Mickey Mantle cards are perhaps <i>the</i> most sought-after baseball cards in the history of collecting. Try tens of thousands of dollars for one in excellent condition.
943526
Well I have a collection of about 200 of them(Phantom, Mandrake, Flash, Bahadur, Rip Kerby, Buzz zawyer etc..)  I am having it as a collection and remembrance of my good old school days. \n\nIf the price is right I can sell some of them
241933
It is worth what someone will give you for it. There is no definite price structure for such items. The only true way to find out is to have it appraised by a sports memorabilia dealer.