Unidentified

8

Butterfield, Michael

1

Chapotot, Louis or Jean

1

Facini, Bernardus

1

Gaertner Scientific Corporation

1

Troughton II, John

1

brass

7

steel

5

silver

3

ivory

2

wood

2

aluminum

1

gilt brass

1

lead

1

plastic

1

Pen

9

Pencil

2

Pen Cleaner

1

Pendulum

1