I don't believe that the polystyrene coffee cup at 9:00 is era appropriate.

Just a second, I'll check: Well the Wiki articles I can find have no timeline or application history, so the jury is out on this.

Anyone?

Polystyrene cups were invented in 1947. The car looks like a 1955 Chevy.

"Warren R. Price and Alexander S. Houston On May 9, 1957, Warren R. Price and Alexander S. Houston, assignors to Waxed Paper Company, filed a patent for a method of making a receptacle of foamed polystyrene. Referencing McIntire's manufacturing of foamed polystyrene, Price and Houston claimed that their method would make receptacles that would be "competitive with paper cups" and could be comfortably held in one's hand "even though boiling water is poured into the cup." This marks the earliest mention of a polystyrene cup."

http://www.comfortncolor.com/HTML/Pittsfield%20paper/When%20were%20Styrofoam%20Cups%20Invented.pdf

Appreciate the info.

I have been scanning my memory bank, and I cannot remember when I first made note of a disposable foam coffee cup. I can recall the disposable plastic cone-shaped insert and the rigid plastic frame with a finger ring that it would pop into used at my father's business (early 1960's). Foam cups just sort of appeared on the scene - maybe were ubiquitous and I simply did not pay attention..

I do remember the backward visibility back then. Now the neck's too stiff and the view is too obstructed.