I know the Freemasons are a controversial lot, but when it came to this drawing tube I didn’t care. I don’t know if it’s made from celluloid or bakelite, but it is durable and compact. I found it years and years ago (for a dollar) when there was a sort of thieves market across from the old, and more official, 26th street flea market. I never really knew what the square and compass represented for the Freemasons until I read up on a little history. I just thought they spent a lot of time drawing. Duh.