Identifying wheels

[Unofornaio]

Hi all I’m hoping someone can help me identify these wheels. They are on my trailer and the center ring has been widened but I’m looking for either a center cap or some king of hubcap that can goose them up a bit.

They are 16” 6 lug and the inner ring is 11.5” clearly is not made to hold a baby moon type but I’d like to put one on. I can weld on tabs it that is even an option.

Thanks for your help

Jeff