(620-621) 2¢ & 5¢ Norse American issues. NH, #620 includes a 2006 PSE certificate (1050700) stating, “it is genuine unused, og., never hinged, Grade XF-Sup 95. Mint OGnh.” The #621 includes a 2008 PSE certificate (117926) stating, “it is genuine unused, og., never hinged, Grade XF-Sup 95. Mint OGnh.” (Image)