Whatever the first class postage is. Today it is 49 cents
The value is whatever the current price for a stamp is these days.
The current price of the Forever Stamp is 49 cents, so depending on the size and weight of what you are sending, you may have to add extra postage to cover the full cost.
It is a forever stamp. It is good for the current value of a first class stamp.
Yes
A first-class stamp is not the same as a forever stamp. A forever stamp holds the value of a first-class stamp regardless of how often the rate for first-class postage has increased. A first-class stamp only holds its face value.
Forever stamps will have the word FOREVER printed on them. If the do not have a value and do not say forever, they have a fixed value.
As of 2016, one standard forever stamp costs 49 cents.
Forever
No, it is not a Forever Stamp.
An unused Forever Stamp is worth whatever the current postage rate is. At the moment that's 49 cents.
Effectively, yes. Strictly speaking, a forever stamp is only one that bears the word "Forever", but like the forever stamp, the Breast Cancer Research stamp is good for 1 oz first class US postage at any time, regardless of the price when you bought it. "The postage value of the Forever Stamp, as well as the nondenominated Breast Cancer Research semipostal stamp, is always the domestic First-Class Mail single-piece 1-ounce letter price that is in effect on the day of use (mailing)."--USPS website, specifically http://pe.usps.gov/text/imm/immc1_020.htm .
The value of the Forever Stamp is the domestic First-Class Mail letter price in effect on the day of use.
The postage stamp that had the word LOVE and a single pink rose on it, is a forever stamp. There was also one that had a value of .25 cents.
The Mark Twain forever stamp was priced at 44 cents when it was first released in 2011. As a forever stamp, its value remains equal to the current first-class mail rate, allowing it to be used for mailing letters regardless of future price increases.