need appraisal of 2 ceramic plates with raised artwork

I found these 2 plates inside my home that was left behind and apparently forgotten by the previous owners.  They were wrapped inside some newspapers from 1959-- so they are AT  LEAST 50 years old. I believe they are ceramic.   The artwork is raised so that it appears to have depth. There is no distinguishing markers such as a name or country.  They appear to depict the exterior and interior of a cottage by a river, possibly English or german style homes from the early 20th or 19th century.  They are in good condition with no chips or cracks. I am undecided if I wish to sell them, but I would like to know a guess on the appraised value.  If anyone can give me their experienced opinion I would be grateful.  Even if it not worth something I would still like to know any back history on this plate.