This is a Scarce & Beautiful Marked RS Prussia Porcelain Shaving Mug. It is marked with a Green Wreath with rust-red edges, a Red Star at the Top and red lettering of the initials R. S.(inside the wreath ) and Prussia (with a period ) beneath the wreath. This Mark dates it, circa late 1870's to 1914. The Mark with R S Prussia is for Erdmann Schlegelmilch. In 1869, his brother,Reinhold began manufacturing porcelain in Tillowitz, a town in upper Silesia. The "R S" in R S Prussia was actually named after their Father, Rudolph Schlegelmilch. R S Prussia starting out in Business in 1861, the Factory was located in Suhl, a town located in a region called Thuringia. This Germanic area was once part of Saxony was conquered by another Germanic state, Prussia, circa 1815. What a beauty this Porcelain Shaving Mug is! This Porcelain Mug stands 3 & 1/4" tall and is 3 & 1/2" across and is in excellent condition. This Mug has a Pearlized background finish and the Massive Roses on the front of this Mug are decorated in soft Pinks with a little of a Deep Mauve in there and the edges of the Petals are White and has a tint of Green here and there. It has a Single Rose Bud on the back in tones of Pink with Mauve, White and Green. This is a Shaving Mug for a Right Handed Person. We have had a few Shaving Mugs & Mustache Cups that were for Left Handed People and they had a beveled mirror on the other side, but being very rare, they are hard to come by. Some good information about the R S Prussia mark: Most R S marks appear to to have been applied after the second firing of the porcelain which produced a vitreous (meaning glass-like) glaze. As a result the marks are not "sealed." Although the mark would have been fired again,after it was stamped on the item in order to set it and give it some longevity, such a mark would not be permanent. With the passing of time, marks applied over the glaze in this manner can become quite worn or rubbed off entirely. Upon inspecting pieces which appeared to be unmarked until held up to the light: then a very distinct outline of the mark could be seen.