Don't Living Voice and Viva use radial horns on their speakers?
Yes, there also many replicas. Generally for WAF, these are the best and are wood and can be made to any colour. JMLC are tough to make in wood, and take more space (big circles). Multicell in wood is usually an Altec Vitavox thing, and Living voice did use a 4-cell multicell many years ago. Multicell looks uglier. Multicell is better for wider dispersion, and if your speakers are away from sidewalls. JMLC is more transparent and can work better if your speakers are near walls. Radial has more horizontal dispersion but less vertical. Christensenleif and his friends have compared JMLC, Radial, Constant directivity and found JMLC to have more drama on sonics, though Radial and constant directivity work better for smaller rooms.
You can also look up images of each of these, as well as Sato and tractrix.