Magazine  (1936)  Page(s) 128.  Includes photo(s).

Book  (1936)  Page(s) 88.  
 
Boelke, Fliegerheld (HT) J.C. Schmidt 1920; C. Testout X Sunburst; nanking-yellow, center reddish-yellow, medium-size, fine form, solitary, fragrance 7/10, floriferous, growth 6/10, upright. Sangerhausen

Website/Catalog  (1934)  Page(s) 92.  Includes photo(s).
 
Fliegerheld Boelcke
Same photo: 1935 Spring issue, p.96; 1936 (Grüne Blätter), p. 128

Website/Catalog  (1933)  Page(s) 91.  
 
Fliegerheld Boelcke (Hybrid Tea). High-centered buds, magnificent cutting sort. Gold-chrome (4/5 ea), edge light salmon (6 ea).... Low garden plants 1 piece RM [Reichsmark] -.60

Website/Catalog  (1929)  Page(s) 121.  
 
Fliegerheld Boelcke (Hybrid Tea). High-centered buds, magnificent cutting sort. Nankeen-yellow, center reddish yellow. Low garden plants 1 piece RM [Reichsmark] 1.25, standards 1 piece RM 4.-, semi-standards 1 piece RM 3.-

Website/Catalog  (1925)  Page(s) 80.  
 
Best rose novelties of the last years...
Fliegerheld Boelcke (Hybrid Tea 1920). High-centered buds, magnificent cutting sort. Nankeen-yellow, center reddish yellow. Low-grafted garden plants 1 piece G.-M. [Gold-Mark] 1.-, standards 1 piece G.-M. 6.-, semi-standards 1 piece G.-M. 5.50

Website/Catalog  (1925)  Page(s) 4.  
 
Fliegerheld Boelcke, 1921, beautiful pink, orange-yellow bloom

Website/Catalog  (1923)  Page(s) 28.  
 
Hybrid Tea Roses .... Fliegerheld Bölcke (Schmidt, 1920). Nankeen-yellow (Testout X Sunburst). f 1.00.

Website/Catalog  (1923)  Page(s) 28.  
 
Hybrid Tea Roses .... Fliegerheld Bölcke (Schmidt, 1920). Nankeen-yellow (Testout X Sunburst). f 1.00.

Magazine  (Aug 1918)  Page(s) 48.  
 
The Rose Novelty Show on occasion of the Board meeting [of the German Rose Society] in Frankfurt...
The Co. J. C. Schmidt sent their newest varieties: Robert Betten and Fliegerheld Bölke. The former originates from Druschki X Corallina and the latter from Caroline Testout X Sunburst. The high-centered, magnificant bloom is nankeen-yellow, beautifully fragrant, solitary on strong stems. Plant is upright and blooming very faithfully. This rose will find general approval.