Do You recognize this this mark for this ring?

[Val1969]

Hello, do You recognize this mark?
Thank You very much

[Steve]

[Ziacat]

I don’t have a clue what that says.

[chicfarmer]

Can’t read it either, but the typeface looks like what you see in Mexican hallmarking. Probably a Mexican ring.

[fernwood]

I tried to clean up the lettering.
I think I see a copyright symbol and 75.