Book  (Dec 2000)  Page(s) 181.  
 
Souvenir de Spa Hybrid Perpetual. Étienne-Victor Gautreau [père] 1872

Book  (Jun 1992)  Page(s) 197.  
 
Souvenir de Spa Hybrid Perpetual. Gautreau 1873. Seedling from 'Mme Victor Verdier' (Hybrid Perpetual)... dark red pink with flame reflections... Bright red, shaded with crimson...

Book  (1936)  Page(s) 676.  
 
Spa, Souv. de (HP) Gautreau 1872; Mme. V. Verdier X ? ; dark red, fire-red reflexes, large, double, globular, fragrance 5/10, floriferous, repeats, growth 7/10, upright, 1 m. Sangerhausen

Magazine  (12 Aug 1911)  Page(s) 386.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Souvenir de Spa... Hybrid Perpetual, Gautreau, 1872, Seedling Madame E. Verdier

Book  (1906)  Page(s) 157.  
 
10.148. Souvenir de Spa, Hybride Remontant, Gautreau 1872 rouge à reflets

Magazine  (1902)  Page(s) 50.  
 
Die Hybridisation der Rosen. Preisaufgabe der National Rose Society. Von Walter Easlea....
...von Mad. V. Verdier: Souv. de Spa, Mrs. Laxton und wahrscheinlich Ella Gordon

Translation:
The hybridization of roses. National Rose Society Prize Task. By Walter Easlea....
...by Mme V. Verdier: Souv. de Spa, Mrs. Laxton and probably Ella Gordon

Book  (1899)  Page(s) 166.  
 
Souv. de Spa, HR, Gautreau, 1872, rouge à reflets, syn. Comtesse de Camondo

Article (magazine)  (1 Feb 1898)  Page(s) 23.  
 
[From a talk by Léon Chénault at the Conference of Rosarians at Orléans, published in "Journal des Roses"]
Souvenir de Spa (Gautreau 1873), très belle rose rouge foncé à reflets feu, revient en 1880 sôus le nom de Comtesse de Camondo.

Translation:
Souvenir de Spa (Gautreau 1873) very beautiful dark rose red with tints of fire, returns in 1880 under the name Comtesse de Camondo.

Book  (1895)  Page(s) 111.  
 
Souvenir de Spa, dark red

Website/Catalog  (1894)  Page(s) 180.  
 
Hybrid Perpetual Roses. 
Souvenir de Spa. Deep red, with a scarlet reflex; large globular flowers; superb