My 7th grade English class is reading a book called Lyddie - about a girl working in the Lowell Massachusetts textile mills in the 1840s. The main character is reading a book she really likes, so she "takes a copy" of the pages she's reading and pastes them up on the windows of the mill to read in her micro-moments of spare time. It says nothing about her hand-copying anything - and makes a point earlier in the book about the relative scarcity and cost of paper.

How could she have "made a copy"?