This ring is made of bronze with a kind of chrome finish.The band has some wear.

After my Italian friends...An infantery regiment, ( regiment no 158) ring, with the Royal crown.
The regiment served in WW1, in the following piece time and in WW2.

The question is...., what period is the ring ?

benten,
Whatever the period I think it's a very good find. Nice ring.

Mikee, thank you. The "problem" with Italian items like these is that the Italians kept their tradition, from WW1 for a longer time.

Benten,, for me thats a classic 1930s / 1940s Italian ring.. Good catch!!

Thanks for your reply Gaspare!