Book  (1954)  
 
In 1916, Paul & Sons of England disseminated several selections under names that denote they are forms or hybrids of R. Brunonii. The most distinct are Paul's Himalayica, a vigorous climber producing huge clusters of single white...

Website/Catalog  (1938)  Page(s) 48.  
 
Hybrid Musk, Bourbon, Gallica, and other types
Himalayica... White tinted blush.

Book  (1933)  Page(s) 204.  
 
Paul's Himalayica. Paul & Sons, 1916. Evidently a selected form of the species R. brunoni or the wild Himalayan Musk Rose. It is a very vigorous climber closely related to R. moschata, with huge clusters of rather large single white flowers.