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

The World of Stamps & Stamp Collecting - Chapter Five

National Defense Issues

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

947 - 1947 3c U.S. Postage Stamp Centenary - Mystic Stamp Company

United States Album Pages on CD 1847-2022 Classic Stamps

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

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

Exploring Heritage Through Stamps: An Inherited Global Collection 🌍✉️ Delving into the past, one stamp at a time. Are any of these stamps have good value ? : r/stamps

1946-1947 13 US Stamps Unhinged Mint Scott 939-947, 949-952

grandmother gave me these stamps (this is half of them) and was wondering if any are worth anything? : r/stamps

U.S. 2 1847 used fvf+ app. (20222), Sharp impression, rich red grid ccl, neat sdhort transfer at top variety, light typical faults, a pleasing example

U.S. 2 1847 Used FVF+ App. (20222) | United States, General Issue Stamp

Check Your Attic: These Stamps Are Worth Millions

1-2 - Complete Set of 2, 1847 Imperforate Stamps - Mystic Stamp

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

Attractive and sound stamps

Complete Set of US Commemorative Stamps Issued in 1946 & 1947 Mint, Never-hinged Merchant Marines, Iowa Centennial, Tennessee, Thomas Edison, Utah