Complex sentence: The current meaning comes from Soviet golden chervonets (сове́тский золото́й черво́нец) issued in 1923 that was equivalent to the pre-revolution 10 gold roubles.
Split into simpler sentences: The current meaning comes from the Soviet golden chervonets (сове́тский золото́й черво́нец), issued in 1923. It was equivalent to the pre-revolution 10 gold roubles.