Maybe It Stands for Johnny?

So, I was watching the 1938 MGM version of "A Christmas Carol" again, as I do every holiday season.

This time, however, I noticed that TCM had the Descriptive Video Service option for the move, so I turned it on, as I think it's kind of an interesting way to watch (hear) something you've seen before.

I raise my hand to admit that I never noticed, until the narrator mentioned it, that the sign for Fezziwig's warehouse has the first initial of "J" included?

I spend so much time nitpicking the movie that I guess I just have overlooked it all these years!

So, what does it stand for?