Antique Chinese Octagonal Blue White Hand Painted Jar with Lid

I need to Id this Beautiful Octaganal Hand Painted Blue White Chinese Marked Jar. I Have seen very Few Linting of this Type
What time period were they Made ? How rare Antique,Vintage Or Modern.
It stands 6 1/2 " tall To top the blue Lid.
It Is shaped Octagonal How ever the lid is round and so is the top of the jar
Lid 4 ' Dia
The top part of the jar has has interesting HandPainted blue white designs

Welcome all comments.

Thank

Alex