the drivers side has the extra stripe on top and the window has a smaller black square to the top right of the window
The ladders in the pictures also tell the story. The pictures with the ladder on the right hand side is a picture of the passenger side that has the curbside door.
If the picture shows the ladder on the left the pic has been reversed. Those also show reversed printing with the capital letter in a position where on would have to read it from right to left.
The door side has a smaller window and it sets higher up on the passenger side than the window that sits lowere as well as being wider.