30 C. And 70 C. Postal stamps \"Merkur head\", with horizontal, over both stamps passing over hand stamp overprint in type I, as properly franked mixed franking on cover from \"Dunkerque north 27-7 40\" to Ghyvelde with arrival postmark on the back from 28.7.40, faultless condition. Photo expertize Gerhard Krischke and expertise Lothar Herbst VP (2018) : \"from affix of the stamps is partly the margin region of the franking slightly gum spots, the other condition is perfect. \" - special by this both values comes the \"gum stained\" gluing on the covers frequent before.