Yes, they use these at the post office when the prices go up and you still have old stamps!
1 stamp (whatever the current price of a stamp is)
The H stamp is worth 33 cents. Yes, you can add a 1 cent stamp to cover 34 cents worth of postage.
You consume 1/10th of a calorie from licking a stamp!!
post card with 1 cent stamp date of 1911
Without knowing the date on the stamp, a description and condition, it is impossible to value a stamp.
postage stamp
Today (February 4, 2015) it is worth 80 cents US.
1%
1
1
1 cents
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.