W.M. Logeman, Haarlem

4

F. Ernecke, Berlijn

3

Watkins & Hill, London

3

F. Ernecke, Berlin

2

J. van Waveren

2

M. Hipp, Neuchatel, Suisse

2

Maison Breguet

2

Siemens & Halske, Berlijn

2

Adams, George

1

After W.M. Logeman, Amsterdam

1

Breguet

1

Cuthbertson, John

1

E. Ducretet & L. Lejeune, Parijs

1

E. Ducretet et Lejeune, Paris

1

Edward Nairne

1

French manufacture

1

Froment, Paris

1

Funckler & Richards, Haarlem

1

Gebr. Caminada, Rotterdam

1

H. Geissler, Bonn

1

J.A. Schoonbeek, Haarlem

1

most from De Saga, Heidelberg

1

O. Hempel, Parijs

1

Philips, Eindhoven

1

Phywe

1

probably Logeman

1

probably Siemens & Halske, Berlin

1

Probably supplied by Worsdel

1

Ruhmkorff, Parijs

1

Telefunken

1

Trouvé, Parijs

1

W.M. Logeman, Haarlem probably

1

glas

38

Messing

28

Mahonie

21

hout

11

ijzer

9

koper

9

metaal

7

eboniet

3

lood

3

ivoor

2

nickel

2

steel

2

walnut

2

zink

2

A.o. ivory

1

bakeliet

1

Boxwood

1

carbon

1

Cottonwool

1

glass with many bubbles

1

leaded base

1

nickel-brass

1

papier

1

Softwood

1

Tinplate

1

Various

1

wax

1

barometer

1

elektriseermachine

1

leidse fles

1

spinner

1

thermokoppel

1