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I've never seen one without the script whether trunk rack or not but that doesn't mean that the never existed. A quick Google search showed several that had the script and none that did not but it was only a 30-second glance.

Here is another interesting fact I learned about the 1940 120 Packards. The owner's preliminary shop manual says the radiator cap should have four pounds pressure. These caps do not appear to exist anywhere. However, John Ulrich listed a couple of original no pressure radiator caps on E-Bay and Max Merritt lists a no pressure cap replacement cap. When asked, John said Packard didn't have pressureized caps until 1941. My 1940 Super Eight lists the cap pressure to be seven pounds in the owners manual. Now I am wondering about my Super Eight!

After having the radiator neck changed on my 1940 110 many years ago so that it would accept a modern cap, I still have the original. In any event, I recall reading about it being 4 lbs but not sure how as I don't recall it having any find of pressure spring and seal. I do now that it you try to put even a slightly higher pressure cape on it you'll risk damaging the radiator as the upper tank is too large to accept any sort of pressure without bulging noticeably.