1.5" bia. button w/black image/text on dark blue bkg. w/small rocketship above and mountain peak to left w/small image of Dr. Huer looking over Buck's shoulder. Rare button from 1936 by unknown issuer but perhaps issued by local newspaper to promote the strip. We know of only three examples and all have staining. Surface is covered w/tiny raised cello bumps although these are noticeable only in reflected light or to the touch and don't detract visually. Button does have tan stain dots mostly confined to the outer circumference and mostly on the outer edge but w/a couple that go into the button face to a depth of about 3/16". Metal reverse has about 60% of the surface covered by surface oxidation while about 40% retains silver luster. The stain blends well with the blue bkg. Overall VG and one of the rarest of all Buck Rogers pinbacks.