These are all numbered 452. To the base they also bear an engraved name and date. For instance "Spring Caithness 1976 452/500". These paperweights were made by the master paperweight creator William Manson. Although designed by Colin Terris each paperweight has a "WM" cane in its setup.This item is in the category "Pottery & Glass\Decorative Pottery & Glassware\Paperweights". The seller is "kmpx5" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, China, Germany, Japan, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, Ukraine, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Chile, Colombia, Panama, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay, Thailand, Mexico.