Lot 42610 – 1935-68 Specialized POLISH GLIDER MAIL collection neatly mounted on 64 exhibition pages

1935-68 Specialized POLISH GLIDER MAIL collection neatly mounted on 64 exhibition pages, beginning with the early “Ustjanova” flights (both 1935 and 1936), unusual items include 1958 “Bocian” flight vignettes, perforated and imperforate plus proofs, 1958 “Bocian” flights with both blue and the more rare red vignettes, noted also prof of the 1962″Bocian” vignette, plus 136 covers and cards including 1954 Lezno flights, 1954 Lisie Katey flights, etc., very fine