Still musing about Coke for a nickel

The coincidences continue (a week later, see HERE, where I wrote about Coca-Cola coincidences).  I was reading Out of Time by Caroline B. Cooney (1996), and the main character had time traveled to 1898 (p. 74). On the opposite page, I read this:

She didn't have to figure out how to buy a ticket; her driver and the porter accomplished this. She did buy a Coke, which cost a nickel. It made her happy to buy a Coke in a glass bottle and pay five cents for it.