Book  (1949)  Page(s) 35.  
 
At present the Rose firm of the Giacomasso Brothers in Turin have a very fine collections of Italian Roses all from Aicardi or their own hybridizations..... Principe di Piemonte is a rich, fragrant red, and a small flower, but brilliant true red is Ardea.

Book  (1948)  Page(s) 4.  
 
This year I decided I must have some new roses and ordered about 20 Italian varieties; they were from Aicardi... or from Giacomasso ... There were two very good red roses: Principe di Piemonte, a fine deep fragrant red, and Ardea, rather small, very free, almost the brightest red I have seen; a pure color, whose one defect is lack of fragrance.