tea infusers

[lindseybob]

:unsure:   have a tea infuser---it has a mark that i cannot read-also has an x v and 4 slashes---also 25 marked on the "cover".   it is round and has raised lines that eminate from a small circle--they are in the form of "esses"--on two "sides"--the hinged cover has a chain attatched and a ring attached to the end--the ring has "beads" all around it.  any one know about it ??//thank you ----linda