experiment with two physical mediums

does anyone know if experimental seances have been held in the past with two physical mediums in cabinets at the same time and whether they were successful?

A while back on a thread about Keith Milton Rhinehart Z posteds a story of he and Alec Harris working together in South Africa.
https://www.spiritualismlink.com/t88-the-mediumship-of-keith-milton-rhinehart

Admin wrote:A while back on a thread about Keith Milton Rhinehart Z posteds a story of he and Alec Harris working together in South Africa.
https://www.spiritualismlink.com/t88-the-mediumship-of-keith-milton-rhinehart

thanks Admin, very interesting...