The matrix shows signs of considerable wear.

Is there much patina upon it ?" he asked.
She turned it over, displaying that thick green corrosion which bronze acquires only by great age.
"Yes, quite a lot, dad.

The raised portion at the back is pierced by a hole very much worn." "Worn by the thong by which it was attached to the girdle of successive abbots through centuries," he declared.

"From its inscription, it is the seal of the Abbot Benedict of the Monastery of St.Ambrose, of Rancia, in Lombardy.

Let me think, now.