This is an amazing rare estate find! I did lots of research and couldn't find another like it. It is in good condition with wear consistent with normal use and it's vintage age.
This is marked in two spots under the pin unfortunately, they are only partial markings and I can't make it out. There is a tiny popped air bubble from manufacturing on one of the Bakelite petals. I don't believe this is a notable flaw or impacts the look and or value of the piece. I just believe in 100% disclosure and always try and list everything I notice.
Metal and Age of piece is unknown. Please enlarge and look at all photos closely for condition.