1 - Gate

1b - Red gate

3 - Palm tree 1

2 - Barrier

4 - Palm tree 2

5 - Tree

6 - Savannah

7 - Lion a.b.c.d

8 - Lioness a.b.c.d

9 - Camel a.b.c.d

10 - Rhino a.b.c.d

11 - Elephant a.b.c.d

12 - Polar bear a.b.c.d

A

B

C

D

13 - Giraffe a.b.c.

14 - Ostrich a.b.c

15 - Boa a.b.c

16 - Brown bear a.b.c

17 - Kangaroo a.b.c

22 - Crocodile a.b.c

19 - Pelican a.b.c

20 - Aps a.b.c

21 - Sea lion a.b.c

18 - Buffalo a.b.c

This German series of the 50s, consists on the base of 22 references, to which we add the variants (noted on the list - See circus Effka), what gives us 61 references + the number of necessary barriers for the preparation of the zoo adjacent to the circus.
The meeting of all elements requires obviously a lot of time and of patience.