How many times have you been walking down the sidewalk and see a penny, only to keep walking past? For most of us, it’s every time. It’s only a penny right? Yes. However, if it is one of many different pennies in circulation, it could be worth far more than that.

If you get lucky, finding one of the following pennies, nickels, dimes, or quarters could be worth 100, 200, and 300 times their face value. The pros at Infinity Coins offers a few tips on what to look for:

Pennies

Although many of the most valuable pennies are relatively rare, most Lincoln Wheat Pennies from 1909-1958 are definitely worth keeping. Also, Lincoln Memorial pennies from 1959-1981 could have a value of nearly $500, depending on if it is doubled-die, as well as its current condition. If you find one you are unsure about, do some research, it could be worth 10 cents or even $10.

Nickels

Your odds of finding a valuable nickel are much greater than the penny. The Jefferson nickel has been in circulation since 1938 and was relatively unchanged until 2004. If you run across a Jefferson nickel made in the 30’s, 40’s, and 50’s, be sure to hang onto it. It could be worth a pretty penny.

Dimes

A few dimes to look out for (although some would be spectacular finds) are the barber dime, the mercury dime, and the Roosevelt dime. There are several different variations of each; however, the year and condition could value up to $200.

Quarters

As with the dimes, a barber quarter dates back to 1916 and would be one rare find. The standing liberty quarters, which ranges from 1916 to 1930 have a few variations that could pay out up to $15. The standing liberty quarter features Miss Liberty exposed or covered up, depending on the year. Silver George Washington quarters also have a healthy payout and earn up to $75.