That would be Aetna fire hall.
https://gunshowtrader.com/gun-shows/newark-antique-gun-military-collectors-show/
Antique firearms only.
Isn't it amazing what can be found about gun shows on gunshowtrader.com?
I was looking at Aetna's site and didn't see anything mentioned
I don't recall that they list the events on their site. I think it's left up to the organizations that host the event. This may be the last year they host it as it's been announced that they will be selling this property and relocating to a yet unnamed new location. They may or may not build a new hall depending on the size of the property.