Book  (2003)  Page(s) Table 13.  
 
Gold Medal awards at the International Rose Trials of Rome, Italy....1939...Flash

Website/Catalog  (1949)  Page(s) 6.  
 
Novelty Roses 1949. Flash (Clb. HT. Hatton 1938.) Large semi-double blooms of deep scarlet red on inner face of petal, with a coppery yellow reverse. The foliage is glossy, adding another charm to a unique and beautiful variety. Spring blooming. 5/- each.
 

Book  (1938)  Page(s) 91.  
 
R.Marion Hatton.  New Roses in America.
Flash is a pillar or moderate climber, scheduled for introduction next fall, which I got from a cross of Rosella and Margaret McGredy. The flowers are large, double, brilliant red inside with a yellow reverse. Two crops of bloom are produced here, the second soon after the first, and I wonder just what it would do in your more favourable Australian climate.