Nowadays every adult can imagine that you can just scan something of a catalogue, enlarge and print on a PC. In the late 90s, there were people that had no idea this is even possible, let alone a teenager would have capability to do it.
Tracing an enlarged image can be accomplished using a box with a small hole in it and a light source. Any art teacher should have imagined that possibility in the 1890s, let alone the 1990s.