Im with Mart here, its difficult to tell, but the shaker and bucket looks to have been loved and used quite a bit, leaving them in a bit of a rough condition, id would still date them around the late 20s, early 30s, while the cart its self is looking more like the 40s or 50s I dont know much about cast wheels, but I think that they may help you date the cart, along with any of the screws or nails holding it together...
the glasses are beautiful but I dont know much about glass, Idk, the whole set (cart and innards) look like the all fit perfectly, it makes me wonder it if its all from the late 30s.
Mart? is it possible that companies were contracted to fill the innards of this lovely cart? and perhaps that is why there is no markings?