Book  (1940)  Page(s) 19.  
 
Vincent Berger, Bokau bei Aussig, Czechoslovakia. 'Catharina Klein'

Book  (1936)  Page(s) 387.  
 
Klein, Catharina (HT) Berger 1930; Hadley X Mrs. Frankl. Dennison; bright pink, shaded silky pink, base light yellow, large, very double, high-centered, lasting, solitary or up to 4, fragrance 5/10, floriferous, continuous bloom, long strong stems, few thorns, growth 7/10, upright, well-branched, Sangerhausen