Book  (1936)  Page(s) 190.  
 
Dame Blanche (HT) Mühle 1926; Stadrat Glaser X ?; pure white, base shaded greenish, medium to large, well double, cup-form, tulip-form, lasting, in clusters to 2-5, fragrance 4/10, floriferous, continuous bloomer, foliage medium & light green, growth 6/10, upright, well-branched, = White Lady

Book  (1936)  Page(s) 396.  
 
Lady, White (HT) Mühle 1927; pure white, base greenish, large, double, cup form, lasting, floriferous, continuous bloom, growth 6/10, well-branched. = Dame Blanche

Magazine  (1929)  Page(s) 247.  
 
Arpad Mühle-Temesvar (Rumania) as a well-known rose breeder has not hesitated to represent foreign countries at the Rose show; his new yellowish white cultivar 'Alexander Marghiloman', 'Mimi Gräfin Schaffgotsch', soft pink, as well as his white 'Dame blanche' and the dark red, star-shaped 'Fritz Schrödter' are ...

Website/Catalog  (1929)  Page(s) 31.  
 
New Roses 1929
Dame Blanche (H.T.) (Arpad Muhle, 1927). A fine large pure white rose tinted with green at the heart. Full cup-shaped flowers that last well. Fine free branching habit. Good foliage. Very free flowering and perpetual. In sorne catalogues this variety is known as 'White Lady', but this name only duplicates a title already in use for another variety. 5/- each.
Promising.