I am sure the sulphide was by Paul Ysart and the canes looked right too. If I had more spare cash I may have won it and then I could have checked it out thoroughly.
However, maybe not too many people will have realised that the tail of the swallow had lost its "streamers". I have seen a photo of the same sulphide, painted in slightly different colours, in a weight that Paul Ysart had in his home.
I also have a vague memory of seeing the eBay weight before - the form of the canes and the broken tail seemed familiar.