Book  (1936)  Page(s) 389.  
 
Knight, Souv. de George (HT) Knight 1928; nankeen-yellow, fragrance 7/10, floriferous, growth 7/10, robust

Article (misc)  (1929)  Page(s) 222.  
 
Souv. de George Knight Hybrid Tea (John E. Knight & Son, 1928)... rich nankeen-yellow...