What's The Face Values For These Stamps?

They are not forever stamps and no face value printed. Then how to determine the face value? Thanks!

By looking in a catalog or asking das google. In Scott, the value of non-denominated stamps is given in () as part of the stamp description. Specifically, the two Christmas 1991 stamps are 29c. The F rate makeup stamp is 4c. The Bulk Rate stamp is 10c.

Here's one common source of information for these stamps:

https://pe.usps.com/text/QSG300/Q604a.htm

Thanks for the info. I found this is very inconvenient. Without a catalog, people wouldn't know how to use them.

Additional info about some US non-denominated stamps. Usually the problem is that the USPS has requested a rate increase and knows that they will get some increase but they do not know how much it is going to be. The approval process is lengthy and sometimes the USPS does not get the full requested raise. They need to print stamps in anticipation of need but don't know what price to use. Thus they use a non-denominated issue. At the time the issue is current there is less confusion as the USPS workers know the correct prices and inform the customers when questions come up.

I find this to be a nice concise summary. Have it bookmarked in my browser for easy reference

https://www.kenmorestamp.com/non-de...d-u-s-stamps

Note that your first stamp, the BULK RATE stamp, can not be used without a special permit for the use of precanceled stamps as first class postage. Such a permit can be obtained from USPS at no charge, although the path to do so can be frought with difficulty. Many postal workers are unaware of the "free permit". When I asked my local PO for one, they wanted to charge me $500. While I knew I was correct and they were wrong, I decided it wasn't worth fighting for the right to use a handful of small denomination stamps as first class postage. At the time, I already had enough postage to last me for several years. And now, several years later, I still do!