That is Scott number US 3749 or 3749A. It has a minimal value and can be purchased for 10 cents in mint or cents used condition.
Without knowing the date on the stamp, a description and condition, it is impossible to value a stamp.
1c 1 cent
The H stamp is worth 33 cents. Yes, you can add a 1 cent stamp to cover 34 cents worth of postage.
20 cents retail. 1 cent as postage.
A 5-cent 1946 Roosevelt stamp is worth about $1, but it depends on the postmark and the design on the stamp. Some postmarks of this stamp could be worth $11 or more.
1 cent.
The lowest value US stamp was the 1/2 cent. A couple different versions were issued.
Price for this stamp varies from 0.15 cents to 1 dollar according to condition.
I called a collector and they said it will not be worth anything except 1 cent.
Scott Catalog #: 3468AValue is about 50 cents used and a dollar mint. Few dealers will be bothered with buying a single stamp.
1 cent
The value of a 1 cent Harding 1922 stamp can vary significantly based on its condition, rarity, and demand among collectors. Generally, a used stamp might be worth a few cents, while a mint condition stamp could range from a few dollars to more. For an accurate assessment, consulting a stamp catalog or a professional appraiser is recommended.