Airmail Cover Is There Is Colour Variety

FYI-The original cover of this thread has a corner card of Albert E. Gorham, who was one of the early FDC sevicers and cachet makers.

I agree chemical color changing is common. BUT the change of color still greatly reduces the value.

I need to ask as a non-collector or new collector as you described yourself in other threads, when and how did you get this collection? If from a dealer, that is where to sell the items. If from a collector, ask where the collector got the items and sell them back to those sources.

What you have shown is just a average collector collection, not one in which the collector cared much about top condition. For the best price if you are selling, is to box it all up and ship to Kelleher Auctions in New Jersey for one of their collection sales.

Nothing you have shown in any of your threads would be considered as a single item auction lot in the top quality auction firms. Your material is just bulk lot material.

Edit: If you are a collector to be, worry less about value, do argue about what you are told about the condition of your items but learn from the comments. Stamp collecting is not a money making activity. Even some "stamp dealers" agree with that statement at times and stop being dealers.

thank you for your notes but this is just small part of my collection

Dear trust:

"Infection" or "infectious" was not meant in Medical sense. It was meant in outgassing sense.

Surely you have seen brownish stains or dark "toning" on old envelopes or papers, caused by being stored next to (against) poor quality papers, or cardboard, etcetera. Old newspaper clippings kept in envelopes is a common cause as well, etcetera.