Possibly Rauenstein. Check the related link.
R. Gonen has written: 'Ancient pottery'
Did you ever find the maker of this mark? I have four cups with the same mark (although I have been debating on whether it is a K or an R) and haven't been able to find anything.
R. G. Haggar has written: 'Dictionary of art terms' 'The concise encyclopedia of Continental pottery and porcelain' 'Staffordshire chimney ornaments' 'Pottery through the ages'
R. German has written: 'Painting with laquer'
Mark R. Dybul was born in 1963.
Mark R. Beissinger was born in 1954.
Mark R. Killenbeck was born in 1948.
Mark R. Kravitz was born in 1950.
Mark R. Hornak was born in 1956.
Mark R. Cohen was born in 1943.
Mark R. Bacon was born in 1852.
Mark R. Bacon died in 1941.