VTG Japanese Sushi Plates 2Pcs Matching Set Ceramic White Cobalt Flower Stamped

VTG Japanese Sushi Plates 2Pcs Matching Set Ceramic White Cobalt Flower Stamped Matching set, both plates have different stamps on the back. I did some research and unfortunately didn't recognize the labels. The plates look old and very nice, they could be something interesting for the experts (or not but anyway they are very nice) Very good pre-owned condition, no chips or cracks etc