Book  (1936)  Page(s) 626.  
 
Rotelfe (HT) Tantau 1922; Chât. Cl. Vougeot X U. Brunner; glossy velvety scarlet, shaded maroon, medium-size, double, globular, lasting, in 2 to 4s, fragarnce 3/10, floriferous, repeats well, long strong stems, small bronze-green foliage, growth 6/10, upright, well-branched. Sangerhausen

Website/Catalog  (1926)  Page(s) 31.  
 
New Roses for 1926. Rotelfe (HT. Tantau) Scarlet and maroon. Said to be an upright growing 'Chateau de Clos Vougeot'. 4/- each,
So far not nearly as dark as Chateau, but a better grower.

Website/Catalog  (1926)  Page(s) 107.  
 
Hybrid Tea. Rotelfe (Tantau 1922). Blackish red, medium size, healthy habit. Cut and forcing rose. Very extraordinarily floriferous.

Book  (1926)  Page(s) 47.  
 
'Chateau de Clos Vougeot' (Pernet-Ducher, 1908): dark velvety scarlet, - darkest of roses, - and very fragrant. Queer, lopsided growth, spreading laterally. Rotelfe (Tantau, 1922) is very similar in color, but just a trifle lighter. The plant appears to be much stronger and more erect.

Website/Catalog  (1922)  Page(s) 30.  Includes photo(s).
 
Rotelfe (eigene Züchtung) sammtig schwarzrot, wohl die dunkelste Rose, die wir heute haben, mittelgroß, Pflanzen von äußerst gesundem Wachstum, für alle Zwecke gut: Treiberei, Schnitt, Gruppen. (Siehe Abbildung auf der Rückseite des Umschlages)