EXTREMELY FINE. A SUPERB LIGHTLY-HINGED EXAMPLE OF THE ONE-CENT PAN-AMERICAN INVERT WHICH HAS BEEN GRADED XF 90 BY P.S.E. THIS IS THE HIGHEST GRADE AWARDED TO DATE.
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 2012 P.S.E. certificate (OGph, XF 90; SMQ $27,500.00). This is the highest grade awarded to date and only four others share this grade.