You can use any USPS postage as long as it is at least $0.94. Make sure to write "AIRMAIL" on the letter as well.
Three stamps ($1.26) are needed because it costs between $0.98 and $1.18 to send a letter to Korea from the U.S.
2
One stamp for a letter.
Just one.
South Korea has a literacy rate of roughly 97.9 %, so roughly nineteen out of every twenty South Koreans can read letters.
3
There are 4,000 rivers in South Korea.
There are 23 players in South Korea
It takes three stamps to send a letter to Norway.
I think there are 28 cities in South Korea .
There are 25 million women in south korea.
how many forever stamps = .94