Search for all terms: Material: silver-brass silver 4 records found.Records with Images1. Equinoctial Ring Dial, Italian?, Late 17th Century? 2. Equinoctial Ring Dial, by Johann Willebrand, Augsburg, c. 1720 3. Equinoctial Ring Dial, German?, 18th Century 4. Equinoctial Ring Dial, by Johann Willebrand, Augsburg, c. 1700