sponsor mark , import mark, an unidentified mark
Italy, probably 1890
Decoration is the famiy heraldry of the Piccolomini famiy, famed wine makers and estate owners in Montalcino
the tastevin is probably 800 silver which was common for the time and region and may have been Dutch in origin or Itaian. It was later gilded most likely in the 1950's as was the fashion.