That is Scott number US 2566. It has a $3 value new and 40 cents used.
Very little. The value of the gold is so small as to make it valueless.
35 cents
All U.S. stamps since the Civil War can still be used to mail letters and packages. So a 4 cent stamp is worth 4 cents today. If the stamp is old you can check in the catalogs to determine collector value. Few stamps issued since 1950 have significant collector value.
Yes. As long as the stamp was issued after 1867 and is still unused, it doesn't matter the denomination. It is still postage.
2 cents. Unless the stamp is a collector's item (which very few are), an un-circulated U.S. stamp retains the same value as the day it was sold.
The first US stamps were issued in 1847. The 5 cent stamp with Benjamin Franklin can be purchased used for $715. Unused the stamp can be purchased for $4,500.
The tulip stamp was marked as the F Flower stamp. It has a face value of 29 cents.
It is a forever stamp. It is good for the current value of a first class stamp.
The value of a Top Value Stamp, "Toppie," the elephant sign is approximately $42. The better the condition of the stamp, the more money it will be worth.
Whatever the first class postage is. Today it is 49 cents
Face value of the original stamp was $0.20
The value of the 1910 1955 penny stamp value is one pound.