Help identifying Hallmark on Lattice Plate

[Barleyman]

This plate is about 8 inches in diameter, with a Mark that looks like it could be initials CMMI. Not sure.


https://1drv.ms/u/s!AhfJkm6M18M7i-Me6N-yEgSmRg4FUw

https://1drv.ms/u/s!AhfJkm6M18M7i-MaQ7r31t_yo_REGA


Any help tracking this down would be most appreciated.

[dognose]

Hi,

Welcome to the Forum.

Please embed your images.

Trev.

[Barleyman]

Sorry about that...