How did arcade operators display the POP?

[EFX]

Hello!

I have found myself wondering why the POP display is included in CAVE's PCB kits? How was it intended to be displayed? The A4 marquee and the move strip is self explanatory, but I am confused by the POP. I have done a few image searches, but I cannot come up with a single example of how the POP was used by the arcade operator. Was it placed on a counter? Hung over the arcade cabinet? Mounted to a wall?

I find it funny that the only photos I can seemingly find of the original POPs are pictured in full PCB kits for sale, none in an arcade environment.

I am sorry if this seems like a dumb question, I found myself wondering this, and figured this would be the best place to ask!

[EOJ]

I'm not sure exactly where arcade ops in Japan place the POP, but I've bought several used ones over the years that have sticky adhesive on the back corners, so they are sticking them somewhere!