Ironlord have been digging & found some manufacturers -Austrian Boss,Royal Doulton, Goldscheider,Leonardene of London,Cope & company of Staffordshire,Essevi Most I have found date from 1925 -1940s and range in price from $170.00 to $3,000.00 would research them well as age is not really what drives the price like tea cups (you know.) You could have some good $$$ and not even know it!!! come on big $$$