Just clearing out a house after the death of a parent and came across some old cameras. Looked them up on ebay, most of them are going for pennies. Until I found a bellows camera, looks like it is a Voightlander Bergheil with photographic plates that go in the back. Seems ok, can't be worth much if it is in my house, but looking around the net and ebay, seems like it has a rare lens in it, a Heliar 3.5 13.5cm. Someone is selling one on ebay now for £515. What I was wondering, please, is it a rare lens, is it really worth that much and if it is what is the best thing to do with it? Thanks