I have been adding high-end Dovo's and Thiers-Issards to my collection lately and overlooked the Geneva Cutlery 6/8's in my rotation. Well, I took it out this morning. I had forgotten what a good shaver it is. It's a full hollow that gives as close and comfortable a shave as a new import costing much more. It's a plain blade with celluloid handles.
So if you are looking to build your rotation economically consider a vintage Geneva/Genco.