anoniem

1

Hilger & Watts Ltd.

1

Watts & Son, E.R.

1

glas (materiaal)

2

hout

2

lood

1

messing

1

metaal

3

papier

1

textiel

1

vilt

1

clinometer

3

clinometer-inspector

1

konstabelkwadrant

1

kwadrant

1