Lot 41182 – 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