Postage Due and Official Stamps. COLLECTION ON STOCKPAGES: 1919-54, about 700 mint and used stamps, representing all postage dues except #J35-39 and complete officials for the period, in parallel mint and used stamps, several imperforate proofs and perforation varieties, all numbered by Scott and identified by Fischer, including Orlowa provisional postage dues and ''Groszy'' overprints, minor flaws possible, full/part of OG or used, F/VF, Est. $300-$400 (Image)