Introduction
Closed and folded booklets of 10 and 20 stamps 0,50F Marianne de Béquet, with or without phosphor bands, were produced with three types of cover: “Caisse d’Épargne Postale”, “Code postal sans trait” and “Code postal avec trait”. This gives a total of ten different types of booklets, numbered here C1 to C10 (as in some catalogues).
In this chapter, we will supply all known information about these booklets: used presses, gravure printing cylinders and packaging machines. (…)