Postby blakstone » Tue Jan 06, 2015 12:37 am
It appears to be that of Hans Jacob Fries I (1647-1712; Master 1673); see Eva-Maria Lösel, Zürcher Goldschmiedekunst vom 13 bis zum 19 Jahrhundert (Zürich: Berichthaus, 1983), pp. 186-187, maker #162.
It looks very nice in the photo - typical late 17th/early 18th C. snakeskin beaker - but (usual caveat ahead) authenticating such a piece requires hands-on inspection.
Good luck & thanks for sharing it!