REMOVE

1. Switzerland
2. Edler, E.
3. Michaelis, L.
4. 1834

WHAT

1. Atlas Map (3)
2. World Atlas (3)

WHERE

1. Germany (2)
2. Netherlands (1)

WHO

1. Ausfeld, Johann Carl (3)
2. Bar, Johann Christoph (3)
3. Hasse (3)
4. Hubbe, Heinrich (3)

WHEN

1. 1833 (2)
2. 1820 (1)