16th century round shield

[Marcus den toom]

Another beautiful item which landed into my collection. A 16th century shield, German or Italian i think judging by the style.
A rondal spike in the middle with a spiral motive running from top to bottom, with leaves at the base. Spiraling pattern shield with a reinforced rim.
All lovely words, but to be honest i have no deeper clue as to its origin or style. Any help is once again appreciated.

It would also be most helpful to get good source material on original handle or leather straps that used to be on the inside. I did find some examples but would be very interested to know how these would generally have looked like. And maybe, if it will prove not to intrusive i might get it restored so that it can be mounted with a complete armour. But that is a story for another time and a work in progress