how much does a 1879 white gold stamp with pope pius worth on the market?
594749
Cannot comment as you have not given complete details i.e. country, conditions of the stamp as all these matter. Following site provide some valuation on stamps:\nhttp://www.allworldstamps.com/
481667
try going to a local auctioneer and get it valued or try valuations on line to get a rough quote i would like to give you 50 pence no ok then
1083417
I wouldn't offer it for sale until I had some idea of it's value.  The Internet is a marvelous thing, see if you can find a board where collectors gather or contact an appraiser.  After you gain some knowledge you may want to contact the Nixon Presidential library, or try ebay.
494869
Check the following site.  Value depends on condition and mintmark for that date.  Anywhere from $10 to over a thousand dollars.
420672
1793 half cent worth about $2,000
81473
Look for it in eBay auctions and see what is being bid for it. If it is a common issue, it may not be offered as a single item. Most stamp and coins that have more value because of rarity are usually offered as single items and could be found easily. \n\nYou could also go to a stamp and coin dealer and ask if they could appraise it. Look for "Mystic Stamp Company" (URL: http://www.mysticstamp.com/) There are several links there including one that says "Selling Your Stamps? GO!" They are located in Camden NY and have been in the stamp business for a very long time and are highly reputable and might be able to help if you can't find anything with eBay. BTW you spelt possession wrong, or is your stamp really on your possion (which I haven't a clue what it could be)?
197930
Depends if it is real or a print. (real ones are going for upward of $2000.00) My advice to you is to take it to an art dealer/auction and have it appraised (even if it is a print)http://www.artbusiness.com/ http://www.askart.com/AskART/index.aspx\n\nGood Luck!
63141
The $500 bill featuring William McKinely's portrait was not issued until 1929.\n\nNo idea what exactly is in your possession, or if it is worth anything.
114513
A pair of 24-k gold plated 1937 buffalo nickels just sold for $4.25 plus $2 shipping and handling.  Thus, yours is probably worth just over $2.
48132
Don't do that.  Sell it to a coin dealer, it is worth much more than the face value on the money.  For quick check, use eBay.
999888
about $200 to $650! if its a real autographed clock. Email me to tell me if its real or not.
563151
They must have been in use in the mid- or late 1950s.\n\nIf you can get an idea of what they are worth, maybe you can auction them on e-Bay (if you can't find a collector).\n\nI visited a few sites and sent a few e-mails asking for info on your stamps.  I'll let you know if I find out anything.\n\nwww.FindYourStampsValue.com was interesting.  Didn't find your stamps - but found links to other stamp sites....  I'll let you know what I hear.   :)\n\n\nUPDATE:  I got the following response to one of the emails I sent out:\n\n"Thanks for your question.  I take it you're referring to the 6-cent John Wesley Powell (1869 Expedition) stamp issued in 1969.  It's a very common stamp, valued by Scott at the catalogue minimum of $0.20 in either mint or \nused condition.  In reality, that means the stamp is probably worth about face value ($0.06) in unused condition, as it can at least still be used for \npostage."\n\nThat response came from http://www.philosateleia.com/.
375580
its valued at 12 dollars
913326
you can alwys search the web like http://www.findyourstampsvalue.com/keywords.html or http://en.wikipedia.org/wiki/Stamp_collecting\njust type rare stamps at google and you will see many options
157134
I would imagine it be worth  something! If its in mint condition. Duncan certainly has done nothing to diminish its worth.
807248
Oh, I love this question.  When I was a senior in high school, our Spanish teacher got us interested in pen pals.  I chose one from Honduras.  We wrote back and forth only a few times.  Then, one day, out of the blue, a girl from Tokyo wrote ME a letter, introducing herself.  SHE picked ME.  We wrote for about three or four years and I have all the letters she wrote me  and most of the stuff she sent me, (what would fit anyway) in two large photo albums.  That was over 25 years ago.  How much do you think the postage stamps would be worth now?
40978
A really badly beat up coin might be worth not much more than the price of the silver.\nAlthough a silver 1775 Carolus III 2 Reales coin will usually sell for $25 to $45, a coin of exceptional quality can go for as much as $250.  If you really want to know what it is worth, take it to a reliable dealer.