Michael Cortese of NobleSpirit and Charles Epting of HR Harmer Visit Sotheby’s to Examine World’s Most Valuable Stamp
For an in-depth look at their visit to Sotheby’s, watch Episode 56 of Conversations with Philatelists, which aired on Monday June 7th. PITTSFIELD, NEW HAMPSHIRE, UNITED STATES, June 9, 2021 /EINPresswire.com/ -- Michael Cortese of NobleSpirit and …