First note Second note Third note
Randomly found them in my room, have no idea why they were there. My family have also never seen them before.
First two are 1937 3 chervonets and 5 chervonets from USSR. Third one is 100 Hungarian pengő from 1930's.
The first two have a picture of Lenin and Cyrillic writing, so they're from Eastern Europe during the communist era. The third one is Hungarian, it's the 100 pengő, from 1930 (it's the date on the note).
For more information, you may want to try /r/whatisthisthing.
