Vintage Mixer with Metal Parts

What would you guess this is? What do you think is this appliance? It is still one of the most essential appliances in our kitchens today. Although it looks like it came out of a chemistry laboratory. It is one of the most creatively designed appliances of all times.

There is a hand-operated mill mechanism on the top, and a wooden squeezer and a glass bottle at the bottom. Here is a hint: it is something to do with lemonade.

This is a hand-operated mixer. It is a vintage mixer with metal parts and a very creative design. We believe that it is used not only as a juice extractor but also for juicing solid ingredients. The mini mill mechanism on the top is impressive.

We are curious about your predictions. Which ingredients do you think this metal mixer was used to grind?