Barr and Sons, England
Year Registered: 1891
Emperor
Monarch
de Graaff Bros., the Netherlands
Year Registered: 1887
Empress x N. albescens
Madame de Graaff
Fl. 114 mm wide; perianth segments broadly ovate, opening creamy white, becoming white, a little inflexed, slightly twisted, overlapping a quarter; the inner segments narrower and more noticeably twisted; corona cylindrical, lightly ribbed, opening primrose yellow, becoming white, with mouth expanded and frilled, rim shallowly crenate.
There are no photos of "Henri Vilmorin" in Daffseek.