Postby blakstone » Mon May 07, 2007 9:19 pm
The mark was used by both Johann Ulrich Schalch (1802-1862; Master 1827) and his son & successor Ulrich Albert Schalch (1829-1893), both of Basel, Switzerland. The company was assumed in 1883 by Gottlieb Schär-Steiner (b. Oftringen, Canton Aargau, 1854), but he apparently continued to use Schalch's mark. The assay office letter in the grouse mark (just above its neck) looks like "Z" for Zurich, which could be; Schär-Steiner moved to Zurich in 1893.
Hope this helps!