Ghost Zoo--Benson's Wild Animal Farm

RJR mentioned 3 Masai giraffe coming in on the same shipment of animals that "Honey" arrived with. These sure look like Masai giraffe to me and the photo is dated 1930's. At first glance it looks like they are in shipping crates with a bushel basket as a "temporary" hay box, but in the photo below it looks like the one on the right is built into the wall of the building, so they may be feed stalls. It wouldn't have been beyond Benson's to use a "temporary" bushel basket for years and years, so it is hard to tell if they are shipping crates or permanent feed stalls. Any other thoughts?