Website/Catalog  (1937)  Page(s) 126.  Includes photo(s).
 
Robert Betten, floriferous amaranth-red Hybrid Tea

Book  (1936)  Page(s) 75.  
 
Betten, Robert (HT) J.C. Schmidt 1920; F. K. Druschki X Corallina; bright deep carmine, large, well double, globular, fragrance 7/10, floriferous, light green foliage, growth 6/10, upright. Sangerhausen

Website/Catalog  (1934)  Page(s) 88.  Includes photo(s).
 
Rob. Betten..Text as in the 1933 catalogue
Same photos: 1935, Spring issue, p. 92; 1937, p. 126; 1938, p. 128

Website/Catalog  (1933)  Page(s) 88.  Includes photo(s).
 
Robert Betten (Hybrid Tea). Excellent, floriferous and vigorous cutting, group and forcing rose. Vigorous upright habit. Strong and sweet fragrance, well double. Intense amaranth (9 l a). Magnificent for groups ...Low garden plants 1 piece RM [Reichsmark] -.45  10 pieces RM  4.- semi-standards 1 piece RM 1.- standards 1 piece 1.60

Website/Catalog  (1929)  Page(s) 122.  
 
Robert Betten (Hybrid Tea). Excellent, floriferous and vigorous cutting, group and forcing rose. Vigorous upright habit. Strong and sweet fragrance, well double, bright dark carmine-red. Magnificent for groups ...Low garden plants 1 piece RM [Reichsmark] 1.- standards RM 3.50

Magazine  (1928)  Page(s) 75.  
 
Table of descendants of the rose "Frau Karl Druschki" by Dr. H. van Rathlef, Halle a. S....
I. 100. Robert Betten HT (I. C. Schmidt 1919) Druschki X Corallina.

Website/Catalog  (1925)  Page(s) 81.  
 
Best rose novelties of the last years...
Robert Betten (Hybrid Tea 1919). Excellent, floriferous and vigorous cutting, group and forcing rose. Vigorous upright growth. Strong and sweet fragrance, well double, bright dark carmine-red. Magnificent for groups. Low-grafted garden plants 1 piece G.-M. [Gold-Mark] 1.- 10 pieces G.-M. 9.- semi-standards 1 piece G.-M. 4.50 standards 1 piece G.-M. 6.-

Website/Catalog  (1923)  Page(s) 40.  
 
Hybrid Tea Roses ....  Robert Betten (Schmidt, 1919). Brilliant carmine-red.

Book  (1919)  Page(s) 238.  
 
Robert Betten In nearest time an own cultivar of Robert Betten will be commercialized under the name 'Robert Betten', this is a hybrid tea. Crimson-red blooms on long stems.

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 colour of Robert Betten is carmine-red, the bloom large and very fragrant. A floriferous, excellent forcing and group rose.