That's an extremely broad question! "Wheatie" cents were minted for 50 years at 3 different mints so there's no simple answer. You have to sort them by date, mint mark, and condition; then compare them against a set of values like the ones linked below.
As a rule of thumb any dated 1944 or later will generally only be worth a few cents unless they're in superb condition. Before that, values range from maybe a nickel to many thousands of dollars so you need to be very careful about identifying each one by its date and mint mark.
It depends on a lot of factors. Modern cents are only worth face value, and even wheat cents from the 1940s and 1950s tend to be worth a nickel or so, simply because so many were made. But if you go back earlier than that, some US cents can be moderately to extremely valuable - for example, a 1914-D cent can be worth hundreds of dollars, and some very old Large Cents can be worth many thousands. But the bottom line is that unless you know a coin's date, mint mark, and condition it's almost impossible to assign a value sight-unseen.
A Guinea is 21 Shillings in the old predecimal British currency. There are 252 Pennies in a Guinea, therefore 504 Pennies is Two Guineas.
4 pounds of old English money, from 1700, is worth £312.36 in 2009 new English money. Converted with the average exchange rate of 2009, that turns out at:$488.96Interestingly, 4 pounds equates to 2 quarts of wheat, 6 stone of wool or 44 days worth of wages for a skilled craftsman...
Its a "G Note" not worth a fortune, but see http://www.coincraft.com/catalog/displayitem.asp?ID=BEB3945&mid=9&cID=181
yes
"Staw Penny" refers to an old US penny with wheat on the back, which was the design through the 1950s. Current pennies have the Lincoln Memorial on the back.
As is the case with so many questions, the answer is that "it depends." What it depends upon are the date (and mint mark) and the condition of the coin. Specific wheat pennies in great condition (a 1909-S VDB in Brilliant Uncirculated condition, for example) could be worth several thousand dollars. If your question is actually "I have a jar with a bunch of wheat pennies in it - what can I sell it for?", the answer is that most coin shops will buy your wheat pennies in bulk for about 2 cents each (and will sell them similarly for about 3 cents each, although generally after trying to pick out the good dates first).
1927, though old, is a fairly common date for pennies. The value ranges from around 10 cents up to a few dollars depending on condition.
Groat
Pennies (US Cents) with a D mintmark were made in Denver. Common-date wheat-back cents are worth 3 - 5 cents apiece. Of course a very few can sell for thousands of dollars in uncirculated condition. Any copper cent minted between 1909 and 1982 is worth almost 2 cents as scrap metal.
If there is roughly 165 U.S. pennies in a pound of mixed (old and new) pennies, times 53 pounds, the total would be about $87.45.
To honour the 150th anniversary of Lincoln's birth, they wanted to change the 50 year old wheat penny design, they chose to use the Lincoln Memorial as the reverse.
15 year old pennies are essentially the same size as those minted today. You'd have to go back to 1857 to find pennies that were significantly larger.
WHAT YEARS be more specific..
Common date wheat back pennies in circulated condition are generally worth 2-3 cents apiece. You can sell them to almost any coin dealer. Rarer dates or those that are still in uncirculated condition will be worth more. Pennies from 1959 on (with the Lincoln Memorial reverse) generally have no added value unless they are absolute gem uncirculated examples. You can view the online Numismedia price guide to check if you have any rare dates -- see the related Web Links.
A penny is always worth a penny no matter what.
I believe the birch cent, the first pennies made in 1792