Unknown coin [solved]

Another item gone unattributed for many years. This coin exhibits the following diagnostics:

D.- 15mm
W.- 1.03 grams
Metal- Copper or bronze

Obverse inscription:
___ROLV___MPE.
Obverse design:
Bust with triangular pointed cap and halo above facing forward. Noted at the shoulders of the bust are two slanted decorated lapels. In the field At bust left 'S', at bust right 'A' both with decorative flourishes above each letter that resemble the Greek letter Ω.

Reverse inscription: None visible
Reverse design: Double headed eagle with crown above and wings and tail-feathers splayed.
The letters are my best guess but all are open to revision.

Neumann I p39 #564.
Herzogthum Mailand (Duchy of Milan)
Charles V 1535-40
Der doppelte gekrönte Adler. Neben dem Schwelfe K_V.
Reverse. S. Das Brustbild des Heil mit Schein und vollem Gesichte, daneben S_A. Ueberschr. KAROLVS. IMPE.

(from Wikipedia: ‘In 1535, after the death of Francesco II Sforza, House of Hapsburg Emperor Charles V annexed the Duchy to his fiefdoms, to avoid other claims by French or collateral branches of Sforza. In 1540, the Duchy was secretly given as a gift to Charles V's son Philip, Prince of Asturias (later Philip II of Spain), making Milan a personal union with Spanish Crown. This became official with the abdication of Charles V in 1556.’)

https://www.acsearch.info/search.html?id=2755426

Many thanks numisquare, it appears you have nailed it. Another longtime unknown bites the dust.

https://en.numista.com/catalogue/pieces151720.html
This?

Many thanks luca biondi for supplying the Numista link to the St. Ambrogio Trillina. This neatly solidifies and ties the attribution in a nice bow.

LHNUMIS