The first newspaper printing of the Declaration of Independence appeared on July 6, 1776, and the edition will be for sale.
Robert A. Siegel Galleries in New York City is auctioning The Pennsylvania Evening Post issue Tuesday. It's estimated to fetch up to $750,000.
The seller wished to remain anonymous.
Four issues of the Post's Declaration have appeared at auction in the past 50 years.
The last sold with other documents at Sotheby's in December 2012 for $722,500.
Seth Kaller, an expert in American historic documents, says the Post printing was only the second printing of the Declaration in any form.
The first was the official broadside printed by John Dunlap.
The versions differ in capitalization.