Wear-Ever Cookware Ink and Gouache Illustration wooden utensils Really a striking and unusual

Really a striking and unusual piece

hard like glass

producing the same scale a semitone higher in each hole

6" long (7 1/2" with handle)

Wear-Ever Cookware Ink and Gouache Illustration wooden utensils Really a striking and unusualI didn't know it when I found this drawing, but WearEver Cookware was quite a notable thing, originating (according to Wikipedia) "in 1888 when Charles Martin Hall, a young inventor from Oberlin, Ohio discovered an inexpensive way to smelt aluminum by perfecting the electrochemical reduction process that extracted aluminum from bauxite ore. Seeking to fund his continued exploration of this new process Hall eventually partnered with Alfred E. Hunt, a