The tiny family bakery, which prides itself on its distinctive, old-world bread, had been closed since April after portions of its oven collapsed when city crews dug into the street outside.
The rare document, signed by Philadelphian Charles Thomson, is one of only eight known surviving signed ratification copies of the U.S. Constitution sent to the 13 original states.
"The Little Street of Clubs," as the historic Midtown Village thoroughfare is known, had been paved over with asphalt in 2015. Soon, the quirky wood will return.