You can use those if you want. They are fixed value stamps for current international price bands. I always recommend 1st &2nd for standard SASEs because they act like US forever stamps and are worth the current selling price. Unlike a stamp say which says £1.23- if your SASE takes a long time ...

Hi i'm interested in sending pictures to get signed by a British actor but i don't live in the UK and this is the first time i'm sending it so i really want to do it right. I have read several suggestions about UK stamps on here that 1st and 2nd class stamps are recommended. Ive looked at the royal ...