Medieval coin? [solved]

Appears to be a medieval pr Renaissance coin, perhaps of one of the Italian States? It is in pretty rough shape. A description follows.

D.- 18mm
W.- 3.14 grams
Metal- Copper or bronze

Obverse: bust left
No discernible inscription
Reverse: Coat of arms @ center
Partial inscription: _________CATOLI___, maybe OVS at end of CATOLI

I guess the 18mm is the current size so original coin was say 21mm
then the shield with castle and lion looks like these, especially with
the [MAIORICA] CATOLIC lettering ...
https://en.numista.com/catalogue/pieces107590.html
https://en.numista.com/catalogue/pieces134583.html

Many thanks ZacUK for your response. The portrait does not contain the 'topknot' of Philip V. I conclude the subject coin to be a Treseta of Luis I, a one year type 1724 (The second link) which matches the subject coin portrait. Thanks again to ZacUK for another fine attribution.