this early of a clock with the high end deco look it more than likely would of been a reverse painted logo that clock was 100% original with a simple vinyl sticker on it probably printed on his own computer i have had similar coca cola clocks and i believe that mobil could afford a little more than a sticker for their dealers he might as well printed a JUNK sticker and stuck it on the clock and then it would have been a JUNK DEALER advertisment for what it was when i saw it i got a good laugh, i have seen so many of these clocks out there all types all kinds