Your coin is a grosso from Milan, or Mediolanvm, as it says on the reverse. It was struck A.D. 1250-1310. The obverse legend is S AMB ROSIV, and is Saint Ambrose, who was the bishop of Milan A.D. 374- 397.
"thank you, do you mind if from time to time I pick your brain on other coins?"
You're quite welcome, but I only dabble outside my area of interest, which is late Roman bronze coinage, specifically Constantine the Great, but I will help if I can.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use