Professional Stamp Experts

Expert Committee

We have examined the enclosed item submitted to PSE,
and are of the opinion that:

Cat #

Issue

Denom.

Color

USA#550

1920

Deep blue

GRADE: Ungraded, Mint OGh

"it is a genuine unused, o.g., hinged, block of four, (the bottom stamps never hinged), the left stamps REPERFORATED at the left."

THIS CERTIFICATE IS PRINTED ON WATERMARKED PAPER AND IS NOT VALID WITHOUT WATERMARK

Enter a Cert Number and click the Verify Certification button.

Cert Number:
Not a valid cert number. Please enter a Cert Number!