SHOW:  Trophies 08
Title:      Trophies.
General:    This Sterling Silver Vertabra is full scale and was made for
            an advertising campaign in a medical journal.
Material:   Sterling Silver.
Gem:
Method:     Hollow Constructed, Cast.
Finish:     Polished.
Mechanics:
Designer:   W.van Heeckeren.
Craftsman:  W.van Heeckeren.

Price:      AUS $ 1250.00.

CASTING.

            CASTING is a method by which moulten metal is poured into a mold
                    in order to achieve the desired shape.  In the "Lost
                    Wax" method, an accurate wax model is made.  The wax
                    model is invested (put in a chrystobalite plaster),
                    after the investment has set, the wax is burned out in
                    a Kiln.  This leaves a negative cavity into which the
                    moulten metal may be poured.

                                                    Wal.

STERLING SILVER.

        STERLING SILVER is a binary Silver alloy consisting of:
                        925 parts/1000 Pure Silver and
                        75 parts/1000 Pure Copper.
 Annealing temperature: 750 degrees Celsius.
   Melting Temperature: 950 degrees Celsius.

                                                    Wal.