You may or may not have noticed but the shape of sticks of butter differs when you buy it on either the West or East Coast.
While one is the longer “stick” shape that results in more square slices when you cut into it, the other is shorter, stubbier, resulting in more rectangular slices.
Apparently, the more “traditional” sticks are called the “Elgin Stick” while the other is called the “Western Stubby” basically because the Midwest dominated the butter game until California got in on the action in the 1960s and wanted to be different, in true West Coast style.