Hi. Looks like a typical Harland fish paperweight, made at Paul's Harland studio in the early 1970s (but not necessarily by him: the brochure says he 'masterminded' the designs. It could have been made by William Manson or David Hurry, for example). The pieces Paul Ysart made at this time for Paul Jokelson and exported to the US were signed with a PY cane, and the agreement was that Paul Ysart would not use the PY cane in the UK. The weights made for the UK market were either signed with an 'H' for Highland Paperweights, or unsigned. As for why this one sold for about 3 times the typical price for one of these...who knows!