Hi, I have a Muddy Fox Vixen, i bought it late 80s. Rode it for a while, but for the last 30 plus years it's been hanging up safe and dry. The frame is steel, it's a women's style frame. It is all original components, apart from the front outer chain ring, i popped a larger one on.. didn't understand about cadence in those days ! Does it have any value to collectors?