Unbreakable Buckler of Protection

Finally found again in Topenah, by Petris of Enthiala in the Far East, this small shield suffers from normal wear and tear of time, but doesn't seem to be affected by impact nor piercing. It seems to stand up to its name's reputation. Perhaps once it's researched by a scientist it can more be explained... as it is, Petris the commoner now seeks to put it in the hands of someone who needs it..