Help China Cup and Saucer

I have recently come across what I believe is a afternoon tea service but have been unable to identify the make/makers so am reaching out for some help.
The cups are 9cm / 3.5 inches in diameter the weight is 70g / 2.5oz
The saucer is 14cm / 5.5 inches in diameter and the weight is 106g / 3.7oz
The plate which I believe is a cake plate is 24cm / 9.5 inches in diameter and the weight is 453g / 14oz.
They have a stamp but after weeks of research I am unable to identify it (new to this so maybe not looking in the right places) so I am reaching out on here to you all for some help. I look forward to any help and suggestions and thanks in advance

I have not seen that mark before but its possible closest thing is maybe one of the Limoges producers?

Thank you much appreciated