Many stamps dealers have listings posted. Your library will have a copy of Scott's International Catalog of Postage Stamps which you can reference.
List of values for an accounting code segment
List of values for an accounting code segment
It is still valid for postage. The exact face value will have to be found on the USPS web site.
Online sites that have stamp value guides include Stamp Collecting Resources, Stamps Site UK, Hobbizine, Find Your Stamps Value, Stamp Treasures and Mystic Stamp.
What type of values does a valid values list (VVL) contain?
First determine the condition. Information on how to do that can be found in a stamp catalog online or in your local library. Then identify the stamp. That will allow you to provide the proper condition rating.
Yes, there are books to get and learn their values. It is better though to search for them on the internet since this is free.
You can still use the stamp. However, you need to add additional value to the stamp with smaller values to equal the 44 cent cost of mailing a letter.
Assuming you are Talking in £'s sterling. It must be £1700.00 Stamp duty is 1% on Values between £125001.00 and £250000.00
According to the website United States Non-denominated Stamp Values, the face value is 37 cents.
The prices of a medium stamp can vary depending on the make and type of stamp. A medium endorsement stamper can run to around $15 and a medium signature stamper is a little more costly, around $25.
Blue Book of Gun Values is one.