The U.S. never used a G mint mark and the only Indian head cents that did carry a mint mark were made by the San Francisco Mint in 1908 and 1909.
The 1882 Indian Head cent is a common coin. Most circulated coins have values of $3.00-$6.00
Assuming you mean Indian Head cent 1887 retail value is $6.00
what is the value of a Indian head penny in excellent condition
The Indian Head cent was not minted until 1859.
No Indian Head cent was ever struck in silver.
Check that date again. The Indian head cent wasn't first minted until 1859.
1882 cents look like any other Indian head cent from the period 1864-1909. I can't point you to a picture of an 1882, but the link shows an 1881 with exactly the same design.
A 1898 Indian head cent made by the US mint has a face value of a .01 USD or 1 cent.
There's no such coin. Wheat cents were made from 1909 to 1958. If your coin has an Indian head design, it's an Indian head cent, not a wheat cent.
Average value of a 1893 Indian head cent is $1.00-$3.00 for circulated coins.
The first year issue for a Indian Head cent was 1859
There are no U.S. pennies from 1882 with a mintmark -- they were all minted at the main mint in Philadelphia. If you are referring to the "L" on the ribbon at the back of the Indian's head, this is the designer's (James Longacre) initial and appears on all Indian head cents after 1864. If it's something else, then it was manually added after the coin left the mint and will drastically reduce the coin's collector value. In circulated conditiion, an 1882 Indian head cent is worth $2-$3