Grading

Jan 26, 20221 min

Scott 120

PSAG is excited to share this world-class gem with our PSAG followers. Scott 120 Used with light cancel and perfectly centered jumbo...

Jun 23, 20211 min

233a – Error of Color (BLUE) Compared to a 233 Ultramarine.

Here is an example of the BLUE error of color variety for the 4c Columbian – 233a. Also attached is a 4c Colombian – 233. This is an...

1,104 views0 comments

Mar 12, 20211 min

March 2021 - Recently Expertized

The following stamps are exceptional quality and would be an excellent addition to any US stamp collection. PSAG Cert 589619 This is a...

Nov 2, 20201 min

The Latest in PSAG Services - Forensic Analysis for Color Varieties

PSAG has now added an extra component - forensic analysis for color varieties.