Question

What is the unit of currency in oceania 1984?

Answer 1

The unit of currency in Oceania 1984 is dollars. 

The term "dollar" was mentioned only a few times in the story. 

For example:
Winston gave Parsons two dollars as payment for Hate Week subscription.

Winston paid four dollars for a coral that the old man said to have come from the Indian Ocean. The coral was embedded in a heavy lump of glass.