No, but you could buy some 5 cent stamps and make the current 44 cent rate.
Yes you can. You would actually save money by going out and buying a current book of stamps, but the post office will take it if you put two 39 cent stamps on there. - While it will be accepted for postage, actually valued at $0.78, it represents an overpayment, which raises suspicion.
first class stamps were increased from 37 cents to 39 cents and post cards from 23 cents to 24 cents
No they are not Forever stamps. They were issued in 2006 and have a value of 39 cents.
39
More than likely, the post office will stamp "Insufficient Postage" on it and return it to you. Not only will you lose out on your 39-cent stamp, but you will also lose the time of delivery. It would be better to buy a 2-cent stamp and add it to the envelope than to lose 39 cents and delivery time.
39 pence
Currently, the cost of a first-class United States Postal Service stamp is 46 cents. The forever stamps that the post office sells will always remain enough to send mail, even if the price of stamps goes up.
The population of Cambodia Securities Exchange is 39.
If my memory serves me right it was in the late 1980's.
January 2006 until May 2007.
39¢ http://www.usps.com/communications/news/stamps/2006/39/
Countries normally issue stamps with a variety of values each year.