For the 1909 Indian Head Half Eagle ($5) coins, mintmarks are located on the reverse, between the rim and the tip of the arrow heads of the bundle of arrows the eagle is standing on. They are very small and can be a little hard to see.
Unless it has an O mint mark, about $300 for its gold content. If it's a 1909-O, it's worth about 2.5X as much as a collectible coin.
The mint mark for the 1909 Half Eagle is located on the reverse {eagle} side of the coin just to the left of the arrow points.
The mint mark on a 1909 VDB Lincoln cent can be found on the reverse (back) of the coin, below the wheat stalks and above the letters "ONE CENT." If there is no mint mark present, it indicates that the coin was minted in Philadelphia.
The US has never used an "E" mint mark. You may be looking at a "D" (Denver) or "S" (San Francisco). There's more information at the Related Question.
About $1000 for its gold content, regardless of mint mark.
The value of a 20 mark gold coin from 1909 would depend on its condition, rarity, and current market demand. You would need to consult with a numismatic expert or appraiser to get an accurate valuation for this specific coin.
Unless it has an O mint mark, about $300 for its gold content. If it's a 1909-O, it's worth about 2.5X as much as a collectible coin.
The mint mark for the 1909 Half Eagle is located on the reverse {eagle} side of the coin just to the left of the arrow points.
The mint mark on a 1909 VDB Lincoln cent can be found on the reverse (back) of the coin, below the wheat stalks and above the letters "ONE CENT." If there is no mint mark present, it indicates that the coin was minted in Philadelphia.
The mint mark on a $5 gold coin from that era is on the reverse (tails) side, just below the eagle.
To answer your question directly, I would need to know the denomination and date of your coin. To find out for yourself, go to www.coinfacts.com
From 1859 to 1907 all Indian cents were struck in Philadelphia so none of them have a mint mark. San Francisco struck small numbers of Indian cents in 1908 and 1909. The mint mark position on these coins is on the reverse below the wreath.
The US has never used an "E" mint mark. You may be looking at a "D" (Denver) or "S" (San Francisco). There's more information at the Related Question.
You need to provide a denomination, an estimate of condition and a mint-mark (if any) for us to accurately evaluate your coin.
About $1000 for its gold content, regardless of mint mark.
If the coin has one, the mintmarks are on the reverse under the eagle.
It depends on the type of coin the date and denomination on were the mint mark is located