Advertising Covers with Interesting Philatelic Features

PSLC member Michael L. Wilson speaks on “Advertising Covers with Interesting Philatelic Features”.
Advertising covers, or illustrated covers depending on your preference, are fascinating collectibles. They provide snapshots of the goods and services offered at a point in time and a lot of insight into the senders. They are most often collected for the quality or rarity of the illustrations, with little, if any, attention given to the stamps used to send the items.
So it’s fun to find advertising covers with interesting philatelic features including different stamp types (commemorative, definitive, airmail, or special delivery), perforation styles, cancellations, and auxiliary markings.
Mike shared a broad array of advertising covers that he has collected over the years, ones which have noteworthy philatelic characteristics. Enjoy!

[@markhoerner2354]

Amazing presentation. So many interesting items. The knowledge on display here is impressive. Good job!