Around the £250 mark posted for one in VGC has been typical, but the cost of a new one has risen by 50% from £275 to £417 . The previous price was a bargain, the recent price not quite so much, as the Izzy is somewhat of marmite gun due to its appearance and action. Having said that there are not many (any?) other SSP pistols at the current price that match its performance. Taking the 2/3 rule of thumb might readily justify a value around £275 posted, and yours also has a case.