Book  (Apr 1999)  Page(s) 384.  
 
Wilhelm Kordes, Climbing Climbing Pernetiana. Wood & Ingram 1927. Sport of 'Wilhelm Kordes' (Pernetiana). The author cites information from different sources... salmon and copper yellow...

Website/Catalog  (1945)  Page(s) 24.  
 
'Clg. Wilhelm Kordes'. A grand climbing form of this very popular rose. Colour is capucine red on a golden yellow ground.

Website/Catalog  (1939)  Page(s) 86.  
 
Rosiers de Pernet (Rosa Pernetiana). ...  Climbing Wilhelm Kordes T [= also as a standard] Accident bien fixé sarmenteux de cette belle variété. Fleur rouge capucine sur fond jaune d'or à l’épanouissement, passant graduellement au jaune d’or, avec des rayures rouges au complet développement.

Book  (1936)  Page(s) 125.  
 
p125.  Mr. H. A. Bird, Bassendean, W.A.  Success and Progress in the West. 
Clb. Wilhelm Kordes. Becoming freer in its blooming habits and deeper in colour.

Book  (1936)  Page(s) 390.  
 
Kordes, Climb. W. (cl. hybrid lutea) Wood & Ingram 1927; sport of above [Wilhelm Kordes]; climbing habit. Sangerhausen

Website/Catalog  (1930)  Page(s) 40.  
 
New Roses 1929 Climbing Wilhelm Kordes (H.T.) (Wood & Ingram, 1928). 5. .....Highly recommended for climates where Pernetianas thrive.

Website/Catalog  (1929)  Page(s) 31.  
 
New Roses 1929
Climbing Wilhelm Kordes (H.T.) (Wood & Ingram, 1928). A grand climbing form of this very popular rose which may be relied upon to become a great favourite. The colour is capucine red on a yellow ground gradually toning to yellow striped red. 5/- each.
Over 90 per cent. very vigorous climbers. Highly recommended.