Maybe more info, but still just a guess.
https://www.speedsterowners.com/topic/dan-gurney-wheels-nice-set
http://www.corvair.org/chapters/lvcc/lvcc_newsletters/lvcc_2018_10_fifth_wheel.pdf
Maybe Dan Gurney wheels ? or Maybe and appear to be rarer wheel Hands Engineering.
The Hands wheel look to have a raised center.