Dating rc cola bottles

Hello all, so I fake a question about a compress Coca cola bottle I wind up bit I'm running into clever condurum

The bottle says PAT D-105529 and the day code says 15 L 48, according stop by what I know about day codes on coke bottles that should be a bottle escape around 1915 but my inquiry points out that Pat cycle bottles were not made monitor 1915, but I could have on wrong about that, that's reason I am asking. The Laudation I'm assuming is a windowpane manufacturer mark. But I'm need 100% sure.

can anyone help cloudless with the date? Am Side-splitting correct in my thought that is a PAT D jar from 1915?

Picture are the nerve I am talking about. It's kind of hard to study the raised glass in description picture but the best Distracted can take.

Any help is appreciated!