Ebay, but if you are sending one there from US you have to use US postage since that's your carrier and any int'l is expensive unless the card itself is important, I would wait until you have a package or letter.
usually none, but if it needs a stamp, just one stamp is needed.
When mailing a letter or package you always use postage purchased in the country you are mailing from. So if you are mailing a letter from the USA to Canada, you would buy stamps at your local post office.
No, you must use US postage stamps.
The postage rate for a standard postcard in the US is 32 cents.
It was one cent to sent a postcard in 1920. The rate was established in 1898. It remained in effect until January of 1952.
The price of a US postal service postcard stamp is 27 cents.
One 28 cent stamp will do the job if you are mailing your card from within the US.
No you cannot use US stamps. Items mailed must have the stamps of the country of origin on them. Most shops will be able to provide you with the appropriate stamps to use to mail with their cards, or visit their post office!
TWO US Forever stamps will suffice (USA to London post card)
Sending Postcards with the USPSWhat Is a Postcard?A postcard is a rectangular mailer sent without an envelope.Sending a postcard is an extremely affordable way to communicate when you're using the U.S. Postal Service-regular postcards cost only $0.33 to mail!
usually none, but if it needs a stamp, just one stamp is needed.
unfortunately no
You can order them straight from the Royal Mail in the UK and they will post direct to you. Visit the link. If you are looking for older stamps from the UK, then a local stamp shop should have them for sale.
In the US there were 7 cent stamps printed. Many of the definitive series of stamps included all denominations from 1 to 20 cents and then every 5 cents after that. And the Postcard rate for part of 1975 was 7 cents.
If this is just a post card you will only need the one stamp to mail it within the US.
I can go to my local post office! They sell Thai postage stamps. They don't sell US stamps. I think you're a little confused - you can buy stamps wherever you live to send things to any part of the world. You don't need to use British stamps to send a letter to England. You can buy other kinds of stamps from other countries, you would have to find someone that can import them. You should try finding Stamp Collectors and such. There are also commercial websites.
In the US, 27 cents was never a first class rate. It was valid for a postcard in May 2008 to May 2009.