1803 buffalo head penny with 200 on it?

???? There is no such coin.

1803 cents carried a portrait of Miss Liberty.

No U.S. coin has ever had a picture of a buffalo's head. Nickels from 1913-38 had the full side image.

The "200" may be a partial date, in which case your coin is from this century.

Please check again and post a more specific and accurate question.