The U.S. did not strike any $1 coins for circulation from 1804 to 1835 inclusive. Please check your coin and post a new question if it's a different date or denomination.
If it actually says 1809, I can think of 2 possibilities:
> If it's small (26 mm) and gold-colored you have one of the new Presidential dollars and you're reading the date that the President was in office rather than the coin's date. If so, the date will be 2007 and it appears on the coin's edge. This is an ordinary circulation coin worth $1. Go ahead and spend it.
> It's a large (38 mm diameter) dollar piece. There are MANY counterfeits on the market, some very good and others stupidly bad, with impossible dates, images, and/or wording. For ex. a couple of years ago I saw what someone claimed to be a "rare" 1865Washington quarter! Big laugh - a counterfeit is of course worth what any counterfeit is - nada.
Sorry, no US Silver Dollars dated 1809
Look at the coin again and post new question, no US one dollar silver coins were made in 1809
The U.S. did not issue silver certificates in 1809.
Please look at the date again, no US dollar coins are dated 1909.
The first US $2 silver certificates were printed in 1886
Sorry, no US Silver Dollars dated 1809
Look at the coin again and post new question, no US one dollar silver coins were made in 1809
The U.S. did not issue silver certificates in 1809.
No US dollar coins were issued in 1809.
Please look at the date again, no US dollar coins are dated 1909.
The first US $2 silver certificates were printed in 1886
No US $1 coins were minted in 1809. If your coin is a bit larger than a quarter and has the Statue of Liberty on the back, it's a modern Presidential dollar. The minting date is on the edge. The coins are made of brass and have no extra value so feel free to spend it.
No US silver dollars were minted for circulation from 1804 to 1835 inclusive. If your coin says ONE DOLLAR and is dated 1809 it's either a fantasy coin, a bullion "round" or one of the many fakes that have come from Asia during the last couple of decades.
None of the Presidential dollar coins made for general circulation are worth more than face value or contain any gold. Only Proof and collectors coins sold from the US Mint are worth more.
What you're describing is the Thomas Jefferson presidential dollar. Minted in 2007, it's worth exactly one dollar.
The 1809 Classic Head Large cent is a higher value coin. It needs to be seen for an accurate value. Take it to a coin dealer for a assessment. In the lowest collectible grade, it has a retail value of $125.00.
No half dimes were minted in 1809. Please check your coin again and post a new question.