I visited a paperweight forum where very helpful experts confirmed to me that this paperweight was a vintage example from the Ysart family and most likely by Salvador Ysart and dating to around 1940. To the centre is a sulphide depiction of Robbie Burns surrounded by beautiful canes on a dark ground. Measuring approx 7.8cm in diameter it stands approx 5cm high, it weighs 446g. It is in good condition with no chips or cracks, there are some air bubbles inside and a floating white mark a...bove the Robbie Burns also a couple of very minor scuffs to the surface which are very difficult to photograph and difficult to see. Thank you