Most visitors online was 1660 , on 12 Dec 2020
The original Philadelphia was established in 189 B.C. by King Eumenes II of Pergamon (197–160 BC).There is the original Philadelphia, near Newcastle, but no sign of him there either.
It is also about five miles from Washington UKIt is a pity John Turnbull hasn't been identified but the dial style at least from a British perspective looks unlikely to be much later than the early 1800s. Out of interest the UK Philadelphia post dates the one in the US.
This is what the message board means when it asks for photos, including the case. Not so simple to make an ID from one photo.Is there anyting inside the clock that could give a clue?
You should change the spelling of the person's last name in the title from "Turnbell" to "Turnbull" for future reference.
If you can not, maybe an administrator can.
At first, I attributed the name to the artist who painted the signing of the Declaration of Independence, but his name was John Trumbull. So, I have no other clues, unfortunately. Others may have more information.