Might be machine doubling. Definitely not a double die. Here's a helpful article from NGC on different types of doubling: https://www.ngccoin.com/news/article/5688/Double-Dies-vs-Machine-Doubling/
The date is not a doubled die. Everything looks to be MD, or a minor dent on the "1' from the 1969 date.
The large over small or small over large (whichever it is, I can't remember) is not on 1969-S, as there was only one date style that year, but on 1960-D.