Tillowitz
Tillowitz (Tulowice) is the name of a town located in Silesia (now part of Poland).
Tillowitz porcelain is usually called R.S. Germany because of its initials on the mark.
R.S. is an abbreviation of Reinhold Schlegelmilch, the name of the porcelain manufacturer.
Ref.:https://www.porcelana-tulowice.pl/
Business: c.1900 ~ 2000(?)
Reinhold Schlegelmilch Marks
1904 ~ 1918
1918 ~ 1921
1918 ~ 1945
1920 ~ 1945
Known as reproduction marks