Where do you find the grade of an Indian head penny?

Answer 1

Grade is another way of saying "condition" so it's not so much where you look but how. You have to examine the coin for signs of wear at various places on the design, and compare it with images shown in a coin-grading book such as Photograde (for serious grading) or the Red Book (for more general evaluations).

Once you have an idea of the coin's condition, its date is another important factor in valuing it. In the case of Indian head cents only 1908 and 1909 coins might have mint marks, so if it's any other date you don't need to check where it was made.