[Arran]

Thanks very much for the newspaper link. I see it is dated November 4, 1933, by which time the 89 had four knobs and had AM and the "police" band - yet the illustrations show AM-only 89 sets.

Edit: And the ad says "...get your Philco now while our selection of new models is complete. There may be a shortage, so we urge you to hurry!" I wonder what "shortage" they were referring to? Just advertising hyperbole, perhaps?

Probably the 1920s and 30s lingo for "Act now" or "Limited time offer" or "While Supplies Last". Funny how you see the same TV ads for the same products year after year with teh same adspeak.
Regards
Arran