Book  (1958)  Page(s) 295.  
 
Petrine. HT. (Therkildsen, '21.) Old Gold X Mme. Edouard Herriot. Dbl., slightly fragrant, coral-red, shaded chrome-yellow.

Book  (1936)  Page(s) 559.  
 
Petrine (hybrid lutea) Therkildsen 1921; Old Gold X Mme. Ed. Herriot; coral-red, shaded chrome-yellow, medium size, double, high-centered, lasting, in 2-4s, fragrance 3/10, floriferous, continuous bloom, long strong stems, many prickles, large glossy green foliage, growth 7/10, bushy, well-branched, hardy.

Book  (1921)  Page(s) 218.  
 
Therkildsen's New Seedling Rose for 1921. Petrine (Hybrid Tea). Colour: Coral red, shaded chrome yellow, with dark green mildew-proof foliage, free flowering, which is continuous all through the summer. I claim this to be the first Rose ...