Ugly Chicken Plate - Wilhelm? - Steingutfabrik Wilhelmsburg, Austria

Purchased primarily because I needed to know where it came from and it was cheap  



Back has an impressed stamp shaped like a shield with the word WILHELM and some other marks/letters that I can't deciper.  

Steingutfabrik Wilhelmsburg, Austria  i think
Different decoration techniques,  painted and sprayed blue,  
early example of Spritzdecor.  possibly  before 1919  or  early 20s

The number of concentric rings sometimes indicates
the size of plates .  This would be size 3.

Thanks again! I knew it was old but not sure how old. Not quite sure what I'm going to do with it yet!

I just washed the plate and realized that there is also a crown stamped on the back of the plate above the shield motif. Off to investigate further...