1920 5m yellow, black and light green, variety "Damaged Plane" (position 50), used with additional franking on registered cover from Tallinn, via Helsinki to Lund, Finland, with arrival pmk on back. A fine and scarce usage of this printing flaw on cover (Cat No. C1var) (Image)

Est.$500

1923 overprinted "1923" on 5m, also surcharged 10m on 5m+5m, gutter blocks of 16 and 8 respectively, each showing various plate flaws and distance varieties, many stamps n.h., folded in gutters, fine-v.f. (Cat No. C2,4) (Image)

Est.$500

1923 overprinted "1923" single, also surcharged 20m on 5m+5m and 45m on 5m+5m pairs, each showing white spot below "P" of "Post", constant variety R-43, v.f., scarce (Cat No. C2,5,6var) (Image)

Est.$500

1923 surcharged 15m on 5m+5m in red and 10m on 5m+5m, used, each showing white spot below "P" of "Post", constant variety R-43, v.f., scarce (Cat No. C3,4var) (Image)

Est.$500

1923 surcharged 20m and 45m in red on 5m+5m, imperforate sheet corner margin blocks of four, positions L7-10, 17-20, former l.h., latter n.h., also 10m in black on 5m+5m sheet corner margin block of six, positions L81/86 and 91/96, v.f., signed Gleason (Cat No. C4,5,6) (Image)

Est.$500

1923 45m on 5m+5m, one stamp plate flaw variety white spot under "P" of "POST", l.h., v.f., signed Vaher. A rarity, only 10 reported (Cat No. C6var) (Image)

Est.$250

1923 10m on 5m+5m (positions 87/90, 97/100) and 20m on 5m+5m (positions 81/84, 91/94), right sheet margin blocks of four, l.h. or n.h., fine-v.f., rough perforations (made by "Paevaleht" newspaper for the Aeronaut Company), first one signed Teetsov (director in both companies), the latter signed Stolow and Gleason, with 1977 Philatelic Foundation Certificates. A wonderful Air Post and Estonian rarities (Mi.43A,44A, Euro 8,000, for hinged singles) cat. $3000 (Cat No. C7-8) (Image)

Cat. $3000, Est.$5,000

1923 10m on 5m+5m (positions R97/98) Teetsov perforations and 20m on 5m+5m (positions L7/8) Aeronaut perforations, used with additional franking on flown cover from Tallinn (28 November, 1923) to Helsinki, with arrival pmks on back, filing fold away from the stamps, fine cover addressed to Juri Ots (an Aeronaut pilot), only about 15 known, signed Gleason (Cat No. C7-8) (Image)

Est.$2,500

1923 20m (positions L29/30) with Paevaleht and 10m (positions R69/70) with Paevaleht at top and Teetsov perforation on three sides, used with additional franking on flown cover TALLINN 28.11.23 on cover to Juri Ots, Helsinki, Poste restante, with arrival pmks on back, fine, signed Gleason. A scarce Juri Ots cover, only 15 known (Cat No. C7-8) (Image)

Est.$2,500

1923 10m and 20m surcharges, each private "Kreopas" perforations (between 11 1/4 and 11 1/2), used with additional franking on registered, flown (V.Kreopas) cover from Tallinn, 21.10.24 to Helsinki, v.f., with arrival pmk. V.Kreopas was a Tallinn stamp dealer (Cat No. C7-8) (Image)

Est.$250

1923 10m on 5m+5m horizontal strip of three, positions L25/26; 35/36; 45/46, Paevaleht perforations, showing plate flaw varieties (Narrow yellow on "Post" in position 25 and broken frames under "O(HU)"), l.h., fine and very rare multiple, signed Teetsov, cat. $1650 (Cat No. C7) (Image)

Cat. $1650, Est.$1,500

1923 10m, private "Kreopas" perforations (between 11 1/4 and 11 1/2), used with additional franking on both sides of registered, flown (V.Kreopas) cover from Tallinn, 17.10.24 to Helsinki, v.f., with arrival pmk (Cat No. C7) (Image)

Est.$250

1923 10m on 5m+5m (positions 47/50, 57/60) block of four imperforate between vertically, l.h. or n.h., fine, signed Eichental. Only another similar block and a pair have been reported (a line of perforations was omitted in one pane between positions 41/50 and 51/60, resulting in five possible pairs imperf. between) (Cat No. C7var) (Image)

Est.$2,500

1923 20m on 5m+5m top sheet margin pane of nine, positions R25/30; 35/40; 45/50, Paevaleht perforation at top, Teetsov perforations other sides, one stamp l.h., others n.h., fine-v.f., signed Teetsov. A remarkable Teetsov and Aeronaut combination multiple (Cat No. C8) (Image)

Est.$2,500

1923 20m on 5m+5m, red surcharge, used with additional franking paying the total of 50m (20m Air Postage, 15m Foreign Letter and 15m Registration fee) on registered and flown (Ewald Eichental) cover from Tallinn (27 May 1924) to Lahti, Finland, with Helsinki transit and Lahti arrival pmks, fine and rare cover, signed Vaher (Cat No. C8) (Image)

Est.$500

1924 Issue, complete set of perforated sheets of 100, n.h., v.f. (Cat No. C9-13) (Image)

Est.$150

1925 Triangles, 100 sets (two sets of sheets of 50), n.h., fine-v.f. (Mi.48-52A, Euro 1,000) cat. $1100 (Cat No. C14-18) (Image)

Cat. $1100, Est.$250