Caithness Glass - Producers of hand crafted modern paperweights and art glass. Information about current products, visitor centres and stockists. Collectors' society information area is only available to fee paying members. The Cloud Glass Reference Site - Information on Davidson's cloud glass and cloud glass in general, including: history, colours, catalogues, patents, trademarks and design registrations. Great Glass - Dealer in antique and collectable glass. Information includes manufacturer's labels and marks, photo galleries and a table of English glass design registration numbers. English Pressed Glass - Press-moulded glass of the 19th Century. Lists the major manufacturers of the period and gives a history of each with photos of their products. Ysart Glass - Information about Ysart glass (Monart, Vasart and Paul Ysart) plus further information on other Scottish and English glass companies such as Pirelli, Nazeing and Gray-Stan. The Glass Message Board - Message board and forum dedicated to all kinds of glass.