Hi,
I can't see a photo of the mark unless I don't know how to view it on this post, but in general MOSCHENDORF PORCELAIN FACTORY was in operation only ca 1878 - 1945. The 1918 is probably the Model Number, but can't tell for certain without seeing the actual mark. They used several marks throughout their operations, some for a few years and some for the entire time, so - again - without looking at the mark it's hard to tell.
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