Phillip sent me this fantastic paper bag. The bag is wonderful, the postmark is wonderful. Perfect item!
As an answer, I send him this envelope made from a vintage paper bag. The “Mammouth stores” were big supermarkets. The brand has disappeared so I guess the bag is a sort of collector… I had this one since ages and it was a bit torn so I thought I could make good use of it in making an envelope. I added some prehistoric themed stamps and washi tape.