The bus is most likely electric powered and chain drive, In this urban environment electric vehicles were plentiful, quiet, efficient and ran most of the day. The lighting system looks to be carbide as they have chimneys or vents on top. This could be a Pope-Waverly electric bus or more likely a Rapid Motor Vehicle Co. bus. Rapid Motor Vehicle was eventually bought by General Motors and this was the beginning of the GMC truck line.

I wonder what the two kids standing in front of the bus are thinking. Possibly wondering if the well-fed women up front are exceeding the weight limit for this vehicle?

Huyler's was a New York City chain of genteel candy shops, some of which had restaurants as well. Founded in the 19th Century, they prospered and at the beginning of the 20th Century they expanded to many areas including Chicago.
In 1929 they merged into the Schulte's retail empire. Schulte's then opened a few hundred more Huyler's locations. Schulte's eventually merged with our old friends The United Cigar Stores.

Back when millinery was important.

With solid tires on cobblestone streets that had to be a bone jarring ride.

Is that Chico Marx getting ready to pull his .45 on the right? Gentlemen, Chicolini here may talk like an idiot and look like an idiot, but don't let that fool you. He really is an idiot.

Looks like both camera and car are causing quite the stir. I love the slightly-blurry ladies, one at each end of the car and walking in separate directions, unable to keep from looking over. Fun times on a fine day in my favorite American city!

Precious. Look at the expressions on the faces in the front seat and
ask yourself: who's really doing the driving?