I thank in advance those who will take the time to answer my question because I’m desperate to find nothing on the subject. So here’s the thing: at the moment, if you want to send a letter abroad weighing less than 20 grams, you have to put on a purple stamp costing €1.96. Nothing too complicated. However, if you want to send a letter weighing from 20 to 100 grams abroad, the rate is not simply doubled as it is for mail within mainland France, but goes up to €4.15, which means that adding anothe...

@cartelys you can perfectly well use some of your stamps and ask your post office to only pay the additional postage needed for your type of mailing.

Sending a letter internationally from 20g to 100g. | Selling on eBay

Sending a letter internationally from 20g to 100g. | Selling on eBay | eBay France