FINE EXAMPLE OF THE ONE-CENT PAN-AMERICAN INVERT.
The 1c Pan-American Inverts were found in at least four different post offices around the country, soon after release of the issue in May 1901.
With 1995 P.F. certificate
EXTREMELY FINE. A GORGEOUS MINT NEVER-HINGED PLATE BLOCK OF THE 5-CENT PAN-AMERICAN ISSUE.
With 2006 P.S.E. certificate