There are six circus sets with curved fences:
- 3517x (1978)
- 3194x (1980)
- 7004 (1984)
- 3727 (1991)
- 4061 (2003)
- 4233 (2007)
There are three designs of the basic fence, but 8 different pieces altogether. There are two white fences, with different sized bars and a grey fence.
Type 1
3194x, 3727 and 3517x (and probably 7004) have white fences with narrower horizontal bars (about 7.5 mm wide). There are two different types of fence;
- 30 03 611 Cage side, curved (white) and
- 30 45 664 Cage side (curved) with doorframe (white) and door.
3727 has one doorframe piece; 3194x, 3517x and 7004 all have two doorframe pieces.
Type 2
4061 has white fences with wider horizontal bars (about 9.5 mm wide). There are three different types of fence;
- 30 09 4980 Cage side, curved (white) x6,
- 30 09 4990 Cage side, curved, with opening for tunnel (white) x 1
- 30 45 0450 Cage side (curved) with doorframe (white) x1.
Here are the two fence widths side by side, Type 2 from 4061 on the left and Type 1 from 3194x/3727/3517x on the right. Maybe the fence was redesigned to make it stronger.
The thicker and thinner white fences DO fit together, so if you have a mixture you can still make a circular enclosure!
Type 3
4233 has grey fences which are quite different from the earlier ones: the ‘spikes’ at the top are shorter for one thing. There are three different fences (six ‘plain’, one with a doorway for humans and one with a low doorway for the animals to enter; part number 30 51 5080 for all 8 pieces).
Here are all 8 fence pieces: plain fence on the top row, human doorway fence on the second row and animal doorway piece on the third row.
