1934 Airs 25k brown violet (slate purple) triangle pair showing variety: IMPERFORATE INBETWEEN, one adhesive hinged, other never hinged, fine and rare, Liapin no.62 var., Scott no.C5 var. (Image)

1934 Airs 2R small format in proof colour orange (ink spots at front and creased), very rare, original gum hinged and 2R ultramarine large format with strongly shifted perf at left margin, unused (Image)

1936 Zeppelin 25k violet horizontal pair IMPERFORATE INBETWEEN, used, scarce, sign. Roig & Garcia, Madrid, Sc no. C13c unpriced, Liapin 111A var. (Image)

1938 Typo Surcharges 05k on 2a red, used, scarce, Liapin no.118 -.-, Sc 93, Mi 108 (Image)

1939 (-1942) 10k handstamped in black on 1934 airs 1m, old value tablet blackened out, used, scarce, sign., 1992 cert. Chiavarello, Liapin no.123A -.-, Sc 104a -.-, Mi 113a (Image)

1927 Registered covers (2) franked 1st issue 8M green 10M violet (pair), other franked 1M rose 2M light blue 5M orange 10M violet (2), both bearing 'KIZIL TOUWA 8.2.27' cds's to Moscou addressed to L.Eichfuss & T.Tschutschin at Twerskaja Jamskaja, each cover with 2 diff. Moscow arrival markings, fine to very fine (Image)

1927 Definitives 18k blue & brown in compound perf. 10 1/2:10:10 1/2 and 10:10:10 1/2, mint hinge remainder, scarce (Image)

1927-1932 14k on 1m showing double surcharge, hinged (with Farberov guarantee cert.), 2k on 50k black surcharge, never hinged and 3k on 70k with inverted surcharge in never hinged margin block of 4, Liapin 12 double surcharge, 30AI & 31 inv.surch., ?1'050 - (Image)

1928 First Issue 1M to 10M, 50M & 1m tied to cover by 'KIZIL TOUWA 91.11.28', philatelic cover but with the 50M and 1m better franking, some stains around edges of adhesives otherwise fine and scarce (Image)

1932-33 Fiscal 15k on 6k, value height 5.1mm, never hinged, as usual 1 short perf, with Farberov 2011 guarantee cert., Liapin no.39, Scott no.41 (Image)

1932-33 Fiscal 35k on 15k, value height 5.1mm, never hinged and extremely fine example for this difficult issue, Liapin no.40, Scott no.44 (Image)

1932-33 Fiscal 35k on 15k, value height 5.1mm, remainder gum resp. - as often - with dried gum, the letters of the word 'Posta' are strongly misaligned, as usual 1 short perf, with Farberov 2011 guarantee cert., Liapin no.40, Scott no.44 (Image)

1932-1933 Fiscal 1R claret with proof surcharge 15k showing variety 'double surcharge', never hinged, fine and rare (Image)

1935 Views of Touva 10k violet with IMPERFORATE left margin, never hinged and IMPERFORATE used example, thinned at bottom middle with small tear, both adhesives are scarce, Sc no. 57 var., Liapin 72 var. (Image)

1935 Views of Touva 10k violet in horizontal block of 4 showing middle triangles with perf 14 : 10 : 14, never hinged and very fine, Sc no. 57a, Liapin 72A (Image)

1935 Views of Touva 15k olive green perf 14 : 14 : 14 : 10, never hinged and very fine, scarce, Sc no. 58 variety, Liapin 73A (Image)

1935 Fauna of Touva 3k Squirrel corner marginal example IMPERFORATE at top, 5k Sabel IMPERFORATE at bottom margin, never hinged and 25k Otter with strong missperf, used, very fine, scarce, Sc no. 62,63,65 var's, Liapin 77,78,80 (Image)

1935 Fauna of Touva 10k Fox block of 8 showing twice IMPERFORATE INBETWEEN & twice IMPERFORATE left sheet margin, never hinged, very fine, rare, Sc no. 64 var's, Liapin 79 var's (Image)

1935 Fauna of Touva 2m Yak IMPERFORATE left sheet margin, never hinged, very fine, rare, Sc no. 68 var., Liapin 83 var. (Image)

1935 Fauna of Touva 5m Bear IMPERFORATE, small hinge remainder, very fine, rare, Sc no. 70 var., Liapin 83I var. (Image)

1936 Touva Anniversary 25k orange IMPERFORATE, never hinged, very fine, rare, with 2014 Farberov guarantee cert., Sc no. 82 var., Liapin 97I (Image)

1936 Touva Anniversary 30k violet IMPERFORATE, never hinged, very fine, rare, with 2016 Farberov guarantee cert., Sc no. 83 var., Liapin 98I (Image)

1936 Touva Anniversary 35k red IMPERFORATE, never hinged, very fine, rare, with 2014 Farberov guarantee cert., Sc no. 84 var., Liapin 99I (Image)

1936 Touva Anniversary 1a orange IMPERFORATE, never hinged, very fine, rare, with 2013 Farberov guarantee cert., Sc no. 89 var., Liapin 104I (Image)

1938 Handstamped surcharges 05k on 2a red air mail (no.115) and 05k on 2a red (no.105) similar to the typo 1938 surcharges, both used, the origin of these surcharges is unknown as they do not seem to be typo but more like handstamps (Image)