Russia, State Treasury 5% obligation loans for 5000 rubles (3), 1917-1919, long format value and arms at left, also Siberian Government Debenture issue, 500 and 1000 rubles, 1919, (Pick 31ff for types, Pick S862, 863, Goryanov/Muradyan 4.18 for similar types), generally extremely fine (5).
Estimate: £150 - £200