Help with stamp on the plate

[Natalya]

Hi everyone
Can anyone help me please to identify this plate and stamp on it?
Unfortunately cannot upload picture with plate size is to big ????
Thanks in advance

[heavenguy]

Hello,

Usually stamps like these are from the second half of the 20th century or even 21 century.

If you have the patience you can find a similar one in here. gotheborg.com/marks/20thcenturychina.shtml

but in order to fully identify a piece you need to publish more photos from top, sides and foot rims. This is an important part of identifying a piece since marks alone is not a reliable method for dating or identifying a piece.

[Hmm]

Pretty sure the first character is the character ? or "to copy/imitate".  Meaning the plate is probably Cultural Rev. or after.