The Zeneth H500 'Super Trans-Oceanic' was introduced in May 1951. It had a redesigned front face and incorporated many frequency coverage and electronic changes ordered by McDonald. There were 245,000 H-500s sold.
In 1953-1954 a line of militarized pruduction was run, designated R-520/Urr which was ordered by the U.S goverment for the Korean conflict.
Ready for restoration