Book  (Dec 2000)  Page(s) 418.  
 
Altesse Impériale
Hybrid Perpetual
Plantier [w/Damaizin] 1858

Book  (1936)  Page(s) 16.  
 
Altesse Impériale (HP) Damaizin 1858; velvety crimson and fire-red, medium size, fine form, long-blooming, beautiful dark green foliage, few prickles, straight branches, growth 6/10.

Book  (1899)  Page(s) 9.  
 
Altesse Impériale, HR, Damaizin, 1858, cramoisi et feu

Magazine  (1863)  Page(s) 91.  
 
... Son Altesse impériale, faible de croissance ....

Magazine  (Apr 1859)  Page(s) 14.  
 
Victor Verdier père et Charles Verdier fils, rue du Marché-aux-Chevaux no. 32 in Paris announce thus to all Roselovers that following new roses, grafted in winter, will be available from 1. May onwards:
Hybrid perpetuals...Altesse Impériale (Damaizin): medium size, full, fiery crimson.