The paragraph in question:
Upon arrival at the Louvre, the statue was reassembled, but the fragments of the left hand and arm were dismissed initially as being a later restoration because of the rougher workmanship. It now is accepted that the left hand holding the apple and the left arm are in fact original to the statue, but were not so well finished as the rest of the statue since they would have been somewhat above visible level and difficult to see. This was a standard practice for many sculptors of the era—less visible parts of statues often were not so well finished since typically, they would be invisible to the casual observer. Sculptures and statues from this era normally were carved out of several blocks of stone and carefully pieced together.