Front stick pedestal casting
In this picture, john did the rough cut of the lightening holes on the back of the casting, using a roughing mill for aluminum. He came back with a different mill to smooth the opening, prior to finish sanding on a spindle sander.
Here's the casting. The boss at the top will be drilled and tapped to fit the Winkler Oiler.
Thought you might like seeing this process. I'm fascinated by it. I'm a frustrated machinist and perhaps one day, I can create the results you see here. But for now, I'll leave the machining to the professionals like John.