Antique 19th century Chinese Blue and white porcelain Prunus Charger dish plate. I think the real name is a wall plate.
I have taken many photos for you to peruse any distinguishing marks. What first looks like nibbling around the rim appears to be firing marks in photo 4 there is a firing mark to the decorated topside photo 11 and another mark to the rim in photo 8. It measures 28.2 cm across and 4cm from bottom to top of rim. Any questions or further photos please do ask.