Book  (Apr 1999)  Page(s) 231.  
 
Gruss an Friedburg Noisette. Rogmans/Metz 1902. Sport of 'Duarte de Oliveira' (Noisette)... pale yellow with a golden center...

Book  (1990)  Page(s) 73.  
 
Gruss an Freidberg Noisette. Rogmanns 1902... deep yellow...

Book  (1936)  Page(s) 281.  
 
Friedberg, Gruss an (Noisette) Rogmans 1902; Sport of Duarte de Oliveira; light yellow, center golden-yellow, medium to large, double, flat, solitary or up to 3, fragrance 6/10, floriferous, long branches, growth 8/10, climbing, 1.5m. Sangerhausen

Book  (1910)  Page(s) 196.  
 
Gruss an Friedberg (Noisette) clear yellow, golden yellow centres. [Paul lists it under New Roses of 1902-1903]

Book  (1906)  Page(s) 70.  
 
4.558. Gruss an Friedberg, Noisette, Rogmans 1902 jaune