10 ruble notes [chervontsy]

The Russian ten ruble note was colloquially known as chervonets, from the old word for "red," because the notes were red. The bills were also coded by size: the ten was larger than the one, three, or five. The color scheme and the size difference did not change with the revolution. (See one-ruble note and three-ruble note)

Soviet 10 ruble note (1980s)

Pre-revolutionary 10 ruble note (1909)