This is an excellent example of an early Swan Self Filling Fountain Pen, this is the Minor 2B which was made in the UK and dates from around 1930.
The pen is made from Black hard rubber with a single gold filled cap ring. The imprint on the barrel is clear and legible and the pen is in good condition with marks and scratches commensurate with use.
Forget the condition though, the real star of the show is this lovely Medium Flex Nib. It writes beautifully and has a lovely flex to it.
The pen has been fully serviced and is ready to write.