Those were TK units on the old Admiral range. TK stood for Tuttle & Kiff. I wonder if the "antique dealer" took anything off the value of the range for the chunk missing from the minute timer dial. Who, in their right mind, would pay $800 for an unrestored range like that given the scarcity of parts? Certainly not the "antique dealer" the Asshat.
That old HP was of the style with the bake element hidden under the oven floor, If it had even moderate use, the oven floor will be rusted out.