Royal Rudolstadt 19th c. porcelain ewer

Royal Rudolstadt 16 1/2" tall ewer. Beautiful enamel leaves. I have read a little on this stamp mark. It is a little confusing if it is a German import mark. I enhanced the embossed number so it would be legible. I did pick this up at a second hand store, but paid more than a few dollars that I usually spend. The colors are remarkable