Possibly a Clark Pitcher American Brilliant Cut Glass.

This is an interesting pitcher that has bee attributed to the T. B. Clark & Company. The fourth photo is from a conversation about the pitcher from one of the FB cut glass groups. This conversation says that even though the catalog photo shows a pinwheel on the side, the one person states that she has seen before where a company changed the main motif. In this case the cutter went went from the pinwheel cutting to a hobstar as on my pitcher.
The piece has a wonderful blank that is nice and clear, typical with Clark. A very nice 8" pitcher.