The coin has corrosion so its tough for me to see if that last digit is an actual 4, although it has a pointed end. More experienced members and better eyes here, do you this guy is an actual 1804 large cent? Any input would be really helpful and educative for the rest of us! https://www.ebay.com/itm/1804-Large-Cent-copper-United-States-of-America-coin-circulated-original-old/402632005784?hash=item5dbebcd898:g:mk0AAOSw7tNf8d9i
Definitely not an 04, the page is gone now so no chance of determining exacly what it was, but the obv was not an 04.