Book  (1936)  Page(s) 228.  
 
Duval, Charles (Bengale) ? before 1848; pale pink, large, double, cup form.

Book  (1910)  Page(s) 253.  
 
Charles Duval Hybrid Bourbon. Description... deep pink, large and full, cupped...

Book  (1899)  Page(s) 35.  
 
Charles Duval, Bengale, rose pâle

Magazine  (1888)  Page(s) 426.  
 
On doit à feu H. Duval, un certain nombre de bulles roses parmi lesquelles nous citerons: ...Charles Duval...

Book  (1880)  Page(s) Annex, p. 27.  
 
hybrid China. Charles Duval, pale red, large, full, flat cup form, beautiful foliage.

Book  (1866)  Page(s) 134.  
 
Rosa hybrida -- Rose hybride. Die hybride-Rose
Charles Duval (Bourbon-Hybride), Blumen groß und voll, schalenförmig; von raschem Wuchs; schön belaubt. Eignet sich zur Säulenform und ist auch zur Topfkultur und zum Treiben zu verwenden.

Translation: The Hybrid Rose.
Charles Duval (Hybrid Bourbon), Flowers are large, full and cupped; of rapid growth; beautifully leafy. Suitable for pillars, and should also be used for pot culture and forcing.

Book  (1866)  Page(s) 128.  
 
The Hybrid Chinese Rose.
The following are among the best of this family of roses: [...] Charles Duval is of a deep pink...

Book  (1864)  Page(s) 190.  
 
Choix des Belles Variétés de Roses.
Hybrides de Bengale (non remontants).
Charles-duval. Fleur grande, pleine, rouge clair.

Choice of Beautiful Rose Varieties.
The Hybrid China Rose.
Charles Duval. The large, full flower is a light red color.

Book  (1858)  Page(s) 246.  
 
Hibriden der Bourbon-Rosen.
Charles Duval, Blumen groß, voll, hellroth, schalenförmig; Wuchs kräftig.

Translation: The Hybrid Bourbon Rose.
Charles Duval, the large, full, cupped flowers are a light red color; growth, vigorous.

Magazine  (Sep 1857)  Page(s) 227.  
 
A Descriptive List of One Hundred of the Best Roses.
By One Who Has Attended the Exhibitions.
Hybrid Bourbon.
In pruning, these Roses should be well thinned, and the flowering branches shortened but little.  The strong growers make fine pillar or climbing plants.  
Charles Duval, rosy pink, excellent form and size.