I am looking for an item similar to this one and need help also with identifying the pattern. Could this be a one-off hand painted Schumann Bavaria Blank?
There are no images showing up, so we can’t help. I have to chuckle at “one-off” with Schumann though, as Schumann’s second name was “mass-produce”. You have harder to find items and sets but definitely no “one-shots” or “firing tests”. What *could* be possible (as said, no images) is that your item was (re)decorated by a hobbyist.