I'll have to say finding out this flying squirrel from my box was a GIANT flying squirrel (stamps aren't necessarily drawn to scale right?) certainly made it more intriguing, besides the fact that, hey, it's a flying squirrel! It looks like Petaurista Alborufus is found in China and Taiwan and moves around at night, but this stamp doesn't do justice to how cute it is. The stamp seems to be part of a series from 1971 (there's also a pangolin!) and can also be found among this collection of flying squirrel stamps.