1945 [COLLECTIONS] PŘETISKOVÉ POSTAL STATIONERY A BLANK FORMS / selection of Slovak overprint letter cards, certificates of mailing, orders and blank forms, contains i.a. CZL4 Un + Us as Express, CZL3 Un, 3x CPL5, CPA2.3, CPV13.3Aa and other 8 pcs of various blank forms; all on exhibit sheets in good quality