Website/Catalog  (1933)  Page(s) 6.  
 
Kelway's Gold Medal Pæonies.
Kelway's Single Flowered Pæonies.
June-flowering. All raised by Kelway unless stated otherwise.
Silver Cup. Exceedingly fine pure white. Like a huge water lily....7/6

Website/Catalog  (1923)  Page(s) 34.  
 
Single Peonies
Silver Cup (Kelway)—Very large; exceedingly beautiful; pure white.