About ring-dials: The company Schoenwandt GmbH In den Haingaerten 5 D-35469 NORDECK Germany
Tel 06407/91030 Fax 06407/910319 produces all kinds of sundials as jewellery, made of brass or silver. So also ring-dials and similar. I got a catalog, i am shure you will get one, if you contact the adress! Greetings Heinrich Stocker
