"OH!! Yay, thanks for the help! Mid Century Modern huh? OK. I thought it might be another pattern of Franciscan, not! Did Rosenthal make other patterns for their dishware? I'll have to check it out. …"
"LOL!! Thanks Tom. I'm still trying to figure out how to post pictures here - it seems that you can only post one to your enquiry, and then have to post any other pertinent ones as "additions" - let me know if there is…"
"I see a yellow bowl and a white one. It looks like it fits the yellow one, but not the white one, although the leaf pattern continues on the white one. I also see a white lid, different handle with flowers on it.
I know you're new so won't…"
"Muster has several different meanings. See Link. Some of them are: model, sample, pattern, design, and more. Also Munster is a city in Germany which comes up in the search.
Are there any other hallmarks on the back or…"
"The tray has a nice Art Nouveau design, probably from the early 20th century. The second line on the back is an abbreviation for "Gesetzlich Geschutzt" and is the German equivalent of a trademark, copyright or patent, as seen in the…"