Lapel badge
1899-1900
Lapel badge
1916
Lapel badge
1917
Lapel badge
1917
Lapel badge
1917
Lapel badge
1917-1918
Lapel badge
1916
Lapel badge
1915
Lapel badge
1917
Lapel badge
1917-1918
Lapel badge
1917-1918
Two lapel badges
1917
Lapel badge
1917-1918
Two lapel badges
1916
Lapel badge
1917-1918
Lapel badge
1917-1918
Two paper badges
1916
Lapel badge
1916
Lapel badge
1916
Lapel badges
1917
Lapel badge
1917
Lapel badge
1915
Lapel badge
1915
Lapel badge
1905
Lapel badge
1915
Lapel badge
1915
Lapel badge
1915
Two lapel badges
1898
Lapel badge
1916
Three lapel badges
1915-1917
Paper lapel badge
1916
Three lapel badges
1916-1918
Lapel badge
1917-1918
Lapel badge
1915-1918
Two lapel badges
1915
Lapel badge
1915
Lapel badge
1916
Lapel badge
1917
Lapel badge
1917
Lapel badge
1917
Lapel badge for 5th International Zoological Congress, Berlin
1901
Lapel badge
1914-1920
Lapel badge
1914-1920
Lapel badge
1914-1945
Lapel badge
1916
Two lapel badges
1916
Lapel badge
1917
Lapel badge
1917
Lapel badge
1917
Lapel badge
1917