The 1909 S is the first year of the Wheat Penny and lives a bit in the shadow of its predecessor, the 1909 S VDB. But the 1909 S is still considered a key date and relatively easy to find considering its low mintage, which makes it an ideal for coin collectors. The auction record for this wheat penny was an MS67 Red that sold in 2004 for $69,000! And it is truly a superb example of the Wheat penny. While you’re unlikely to find a coin in that condition, the average 1909 S wheat penny is still worth $100-$500, which considering it has a face value of $0.01 I’d say that’s a pretty good increase! Be sure to watch out for altered coins and get your coins graded by a third party grading service like PCGS to get your coins authenticated.