I'm not really into clocks,I only have a few,so I don't know about the one under discussion.I will comment that I agree with Wes in that there are variations on a lot of real pieces in this hobby,particularly in signs over time that I can attest to.The three versions of the Texaco Fire Chief and the MC/AX Mobil shield pump plates come to mind.

With that in mind,I personally would not pass on that clock if I wanted it;AFTER,as Wes mentioned,I really looked it over.