1941, gift booklet \"collection de Timbre you B. I. E\", composed of 25 insides, each with printed explanation to the respective stamps, therein included: 1. ) Pestalozzi and Sirard always mint never hinged and used, always in mint never hinged miniature sheet and mint never hinged souvenir sheets, 2. ) all stamps of the Swiss BIE Michel number 1 / 48 mint never hinged complete, 3. ) Romania, Maiorescu set and souvenir sheet mint never hinged, Michel number 743 / 45, souvenir sheet 19, 4. ) Poland, BIE set and souvenir sheet mint never hinged Michel number 445 / 47 and souvenir sheet 9, extraordinarily scarce booklet from collector's value! It might only a few pieces of this kind existing. (illustrations see online catalogue)