The background history is that around 1962 Marx introduced a series of 23 figures in individual color illustrated boxes titled the Animal Kingdom and made in Hong Kong.

Sometime around 1967, the sculpting was revised on all the figures except the Kangaroo male and Gorilla, and were made in both Hong Kong and Taiwan.  The revised gorilla had a different paint scheme of contrast with a darker brown body and flesh colored face, and although some boxes state that the figure was made in Taiwan, all figures that exist are only marked Hong Kong. 

In 1969, a final series was released with an overprint of the 'Animal Kingdom' title on the same color illustrated boxes with a new title given as 'Wild Animals', same revised model figures and made only in Taiwan, and a 24th figure was added of the Hippopotamus. 

Here is the complete collection of all 24 figures: Hippopotamus, Gorilla, Ape (Gibbon), Giraffe, Rhinoceros, Elephant, Zebra, Moose, Mule Deer, Eland, Ibex, Kangaroo male, Kangaroo female, Lion, Leopard, Tiger, Jaguar, Grizzly Bear, Panther (cougar), Wolf, Red Fox, Striped Skunk, Gray Squirrel, and Camel. All marked Taiwan with the exceptions that the Gorilla which was never marked Taiwan on the mold and the hippo which never had any country marking.  In fact, if you find one that is marked it is almost certain that it is a 'bootleg' copy and they do exist although the detail and painting are notably worse than the original Marx figure. 

All are in good condition with minor wear and no damage.