ruby rose, n. — Green’s Dictionary of Slang

ruby rose n.

[rhy. sl.; note 17C–18C ruby, a carbuncle on the nose, thus Ned Ward (1707): ‘a Man who always lugg’d about with him at least two pounds of Nose, beset as thick with magnificent Rubies, as the Gills of a Turkey-Cock going to Battle’]

the nose.

1953		Berrey & Van den Bark Amer. Thes. Sl. (2nd edn).
1992		R. Puxley Cockney Rabbit.