Randy ShoemakerJul 262 minNewly recognized shade of a Scott 381 postmarked on May 12, 1912If you think you might have a Scott 381 with this new shade of Brown Yellow, submit to PSAG and we will have it chemically analyzed for the
Randy ShoemakerJun 23, 20211 min233a – 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...
Randy ShoemakerNov 2, 20201 minThe Latest in PSAG Services - Forensic Analysis for Color VarietiesPSAG has now added an extra component - forensic analysis for color varieties.
