**** Non working for display purposes. **** these were likely  supplied as standard equipment in the tool kit of  early HUPMOBILES  sold.   Beautiful dial face marked with the HUP six eight logo  . Why waste the $$ on something in a display case, or required tool  kit.    Original nickel plated case in good condition.  Original Plastic Lens.    This example is AS FOUND, UNTESTED , so count on it NOT working and it’s good overall original condition is perfect for the official tool kit as many  like to keep around and to display with their autos.