A foreign royal treasure has been found in Westchester County.

It's an extremely rare model of a carved Tyrannosaurus Rex in nephrite, a type of jade by Fabergé, with rose-cut diamond eyes.

This piece of imperial Russian history dates back to the early 1900s and is thought to be inspired by the first T-Rex skeletal discoveries a few years earlier.

There are only two or three known examples of prehistoric creatures — carved by Fabergé.

It's expected to be a significant sale at Clarke Auction Gallery in Larchmont.

The auction is Sunday at Clarke Auction in Larchmont.