Old map (scanned)

Having a sort out and found this old zoo map. It\'s obviously Twycross, but can anyone attach an approximate year to it?

I'd date it as late 90's because the cheetahs and forest buffalo have gone from the collection but sand cats are still labelled. 97-98 would be my best guess!

EDIT - Could be earlier, the seal pool is still labelled and I'm not sure when they left the collection but I'm pretty sure it was earlier than that, can't recall seeing them post 95?