Book  (19 Apr 2000)  Page(s) 473.  
 
'Prinz Max zu Schaumburg', HT, op, 1934; flowers salmon-pink, large, dbl., intense fragrance; vigorous growth; [Frau Karl Druschki X Lyon Rose]; Schaumburg-Lippe

Website/Catalog  (1938)  Page(s) 33.  
 
Prinz Max zu Schaumburg (Prinzessin Elsa zu Schaumburg-Lippe 34). Very large bloom, well double, Malmaison-form, large petals, salmon-pink, good growth, very floriferous, strong fragrance, hardy. (Druschki X Lyonrose).

Book  (1936)  Page(s) 648.  
 
zu Schaumburg-Lippe, Prinz Max (HP) Herz. Elsa v. Württ. 1934; Druschki X Lyon Rose; salmon-pink, lasting, 12-15cm, well double, lasting, fragrance 6/10, florieferous, repeats well, strong upright stems, few thorns, Druschki-foliage, growth 7/10, upright, 2m. Sangerhausen