This is an antique O. & E.G. Royal Austria cabinet plate featuring a hand-painted pastoral scene with a blue windmill and a heavily gilded gold rim. 

Key Details About Your Piece:

• Manufacturer: Oscar & Edgar Gutherz (O. & E.G.), produced in the Altwasser/Bohemia region (Austria).

• Era: Produced between 1889 and 1918 based on the green wreath backstamp.

• Design Style: It features a monochrome blue landscape reminiscent of traditional Dutch Delftware, but executed in the distinctively soft, hand-painted porcelain style favored by Austrian blank studios of the period. 

• Artist Initials: You can see the hand-painted initials J.B. on the right-hand side of the scene. Many Royal Austria blanks were sold to both factory and independent hobbyist artists who hand-painted them, which makes pieces with unique variations highly collectible

Having the original box significantly impacts the value, lifting the estimated range to $45 to $75+.- No COA with plates this old, believe box is original but inside deteriorating.