Vintage Ceebynite Compass

Found in an estate that I purchased . It is vintage , it has wear and tear of course due to its age. I do not know its history I did clean the case with silver polish and it took off tarnish that it had. I do not know what materials it is made of as there are no markings at all to identify that. I did use a heavy magnet and it does not react so it could be silver, brass, aluminum , titanium or anyother not magnetic metal alloy. So it is being sold simply as a vintage Ceebynite compass with an engraved cover and back . As always all proceeds go towards helping us to continue our work with abandoned homeless animals, so thankyou for peeking in at our item