Get the Instantiate parameters by instantiated object

I have this part of a script:

Code (CSharp):

1. Item = hit.transfrom.gameObject;
2. NewItem = Instantiate(Item, new Vector3(x, y, x), new Quaternion(x, y, z, w));

As you can see, the Item GameObject is an existent gameObject from hierarchy.
After executing this lines of code, I have a new gameObject in the hierarchy named exactly as the Item but with "(Clone)" at the end.

In other script, I want to get the Item gameObject in a variable using NewItem.
Basically I want to get the gameObject which was used to Instantiate another gameObject(Clone).