Actually, the nit-picky art director in me has to point out that no, the font is not the same - but I'm willing to bet that it's still an ad for the bread.

You're right, even I noticed subtle differences. But it's close (which is really what I meant to say, but didn't).

I think that's a hand-painted sign (see the sign painter's signature to the lower left below the sign), and I'll bet those guys didn't always manage to exactly match all fonts when painting by hand.

Or it might be that the Colonial Bread logo was slightly different then -- I wish I could find an old image that has the curtsying woman in it.