Pof.L3A, 28Kč/1000h violet, line perforation 13¾;, in addition on reverse with incomplete overprint offset, lightly hinged, very fine piece, exp. by Gilbert., Mrňák, cat. min. 12.000CZK
Pof.L3A, 28Kč/1000h, line perforation 13¾;, marked, in gum small spot overprint color, otherwise good quality, exp. by Stupka., owner mark, c.v.. 20.000CZK
trial overprint 28CZK, black Opt on stmp Hradčany 25h, type IIp, very wide margins, exp. by Mahr., marked as PLATE PROOF, c.v.. 1.800CZK without bar type
PLATE PROOF selection of overprints: value 14CZK in/at original color, as blk-of-4 on carton paper; value 24CZK in black color, str-of-3 on chalky paper; value 28CZK vertical pair on chalky paper; all hinged, exp. by Stupka
1921issue I, R + Ex + Flight + Return receipt - letter to France, with Pof.L3, last day of validity, CDS PRAGUE - AIRPORT/ 30.IV.21, pair směrovky Prague - Paris, corner piece with paper crease, arrival postmark. VIROFLAY/ 4.5.21, on reverse residue/scrap return receipt, otherwise well preserved,
1921 Reg and airmail letter to France, with Pof.L1-3 + Pof.167, CDS PRAGUE 1/ 28.IV.21, on reverse arrival postmark. PARIS/ 30.4.21, air direction label PRAGUE - PAŘÍŽ, without other marks air-mail transport, on reverse mark MAHR BPP, attached certificate of mailing with marked valuable 70,00Kč, good condition
Pof.L4-L6, II. provisional air mail stmp., blk-of-10, L4 with plate variety on pos. 30 (cut 5), L6 block with upper margin in/at 1. and 5. řádě II. types wide zero, plate 2, on/for L stamp 4. line interrupted overprint aircraft (catalogue doesn't report, see photo in Monograph), nice, all exp. by Gilbert., c.v.. ca. 15.000CZK
Pof.L4-L6, II. provisional air mail stmp., 2 complete set, value 250/400h vertical pair with joined types I. + II., all mint never hinged, c.v.. 1.500CZK
Pof.L4, II. provisional air mail stmp. 50/100h green, plate variety 2 (wedge [ ˇ ] instead kolečka on pos. 100), podkladová stmp with light otěrem, marked and exp. by Karasek., c.v.. 600CZK
1928Reg and airmail letter transported the first flight Czechoslovak Airlines on/for line Prague - Mariánské Lázně - Kassel - Rotterdam, partial trace Prague - Kassel, with Pof.L4-L6, CDS PRAGUE 82-Airport/ 30.IV.28, arrival postmark. KASSEL/ BETTENHAUSEN/ 30.4.28, red cachet, Horka č.75a, 2x exp. by Gilbert., forwarded only 150 pieces, certificate of mailing including, well preserved
Pof.L7-L14, Definitive issue, study selection of according to types, perf and colors, on hingeless pages on 2 cartons with description, own production, to set missing 2 pieces, mostly mint never hinged, part of the stamps expertized and marked, suitable to finishing, noteworthy to attention
Pof.L15, value 30h, 2x counter sheet, plate number "3" and "4", two shades violet color, by/on/at 2 stamps damage gum (voda?), light stains in margin, otherwise well preserved
1928-38 comp. 3 pcs of airmail entires; first flight PRAHA–MARIÁNSKÉ LÁZNĚ, poste restante; airmail letter to England and PRAHA–WIEN with special postmark 26.VI.38; 1x light crosswise fold
1932 special delivery air-mail letter to Hungary, with Pof.L7 + L13, CDS KARLOVY VARY/ 16.VIII.32, transit. PRAGUE 82-Airport/ 17.VIII.32, straight line postmark LÉGIPOSTÁVALÉRKEZETT (by air mail transfered by), on reverse 3x various postmark Budapest (air post, post. central office, post 62), ribbed envelope, else preserved
1932 postcard transported by air mail from Bratislava, with Pofis. L7 + L8, CDS BRATISLAVA/ 23.IX.32, transit. PRAGUE - AIRPORT/ 23.IX.32, framed pmk Airmail, good condition
1936Ex+Let-dopisnice CDV49, Coat of arms 50h, to Switzerland, uprated with stamp Pof.312, 304, 303, CDS TGF PRAGUE 26.VIII.36, air-mail cancel. PRAGUE 7/ 26.VIII.36 and arrival postmark ZÜRICH 27.VIII.36, all on front address side, good condition, interesting entire
1936 airmail letter to Switzerland, with Pof.L11A, line perforation 12¼;, CDS PRAGUE ?/ 11.XI.36, on reverse framed CDS PRAGUE 7/ AIRMAIL/ 11.XI.38, without transit and arrival postmarks, good condition
1938airmail letter to USA, with 5CZK, Pof.L12, CDS SLANÝ/ 2.XII.38, refused and sent back, through/over post. dead letter off. in Prague vyhledání sender, label post. dead letter off. nepoškozena, violet cancel. "Collect near/in/at delivery CZK 1", mounted Postage due stamp 1CZK, Pof.DL62, with CDS SLANÝ/ 1.II.39; interesting document of postal traffic on/for air-mail mailing!
1935 CDV57/1 international pictorial PC FIS, to Austria I. leletem PIEŠŤANY - BRATISLAVA - WIEN, blue air mail postmark BRATISLAVA 2/ 1.VI.35, arrival WIEN 1/ FLUGPOST 1.VI.35; superb
1932ZEPPELIN - 3. Südamerikafahrt (Flight to South America) Reg + Airmail postcard franked Czechosl. stamp. Pof.L13, L11, 270, 268, 220, addressed to to Brazil, CDS PRAGUE 1/ 16.IV.32, air-mail PRAGUE 7/ 16.IV.32, red cachet připojovacího flight Berlin - Friedrichshafen and brown flight cachet to South America, arrival postmark BUENOS AIRES 22.Abr.32; good condition
1937-38 CATAPULT MAIL comp. 2 pcs of airmail letters to Buenos Aires, 1x right franking, 1x přefrankován, CDS MIKULÁŠOVICE, cachets, on reverse arrival postmark, very decorative, c.v.. more than 5.000CZK
1919Pof.S1-3N, Express 2h - 10h, on white paper, 2x lower margin with control-numbers, marked by Tribuna., Hirsch, Gilbert, Karasek, commercial mark Topič and owner's marks, cat. min. 3.650CZK
1919Pof.S1-S2Ms, Express 2h + 5h, vertical 4-stamp gutters, at value 2h thin/light fold and in R margin dark dot in paper, marked by Tribuna., Gilbert and mark Havlas; value 5h superb marginal gutter, exp. by Gilbert + mark Havlas, both mint never hinged, c.v.. 6.000CZK
![127606 - 1925-39 [COLLECTIONS] selection of 80 pcs of airmail letter](http://i.burda-auction.cz/webove/nahledy_galerie/127606.jpg)
