Hi George,
The belts look like the Austrian roller buckle belt, mounted troops used this type of belt in the A-H military, but in the mid part of the war, it was also issued to the infantry as it was easer to make and cheaper. I would suspect that this groop of soldiers were issued what ever equipment they could come up with. Ther are several types of ersatz Hauben in the photo, with brass and gray fittings .
Gus