I recently acquired a collection of US stamps dating back to 1847

Daniel F. Kelleher Auctions, LLC Sale - 759 Page 3

PACK 1-50 Different Mint Vintage Collectible 3 Cent

Inherited Stamp Collection - Small Sample, Value? : r/stamps

What's the value of this vintage stamp collection of Ambassadors from around the world ? : r/whatsthisworth

USPS 101: 26 things to know about the U.S. Postal Service – Sun

Inherited a lot of stamps, what are the criteria for value? Is it worth keeping? : r/stampcollecting

Check Your Attic: These Stamps Are Worth Millions

Sold at Auction: American Heirloom USA Postage Stamps Collection

Inherited a album of Germany And Colonies stamps from my Grandfather, any idea how to value it? Most of the pages are full of stamps. : r/stamps

An Introduction to Stamp Collecting.

Large Bank Note Issues (1873)

First Purchase in this hobby, late 30's/early 40's Swedish covers with stamps, plus a Swiss postcard with stamp! Found at an estate sale. : r/philately

Need quick opinion on stamps Pre-1930 : r/stampcollecting