1920 25r on 50k green and copper-red (Type 6 surcharge in black) vertical pair, fine o.g., the surcharge tête-bêche, the upper stamp showing it inverted.  Only 1000 of the basic stamp issued; very rare in this format.  SG 33 var. (Image)

1920 50r on 3k carmine-red, imperforate, Type 6 surcharge in black, large part o.g.  Romeko guarantee handstamp on reverse.  359 issued; rare.  SG 39, £550 (Image)

Postcard stamps.  1919 35k on 4k carmine-red ‘Romanov’, handstamped surcharge as Type 2, unused without gum (as are all of these).  Very fine for this; only 78 issued, with a very low survival rate.  Friedl Certificate (1978) signed Bloch, as is the stamp.  SG P2 (catalogued £18000 on unused postcard) (Image)