Ermentini, Filanci, Stamp imprints made from postal stationery
Beppe Ermentini, Franco Filanci, Stamp imprints obtained from postal stationery and used by post, sn, Reggio Emilia 1995, pp. 13-22, ill. bn, cm 27, br. and.
Extract from: Memoirs of the Italian Academy of Philatelic and Numismatic Studies, vol. VI, fasc. I, 1995.