Green’s Dictionary of Slang

scent-box n.

the nose.

1829		Citizen 1 July 379: Round 1st. Blue opened the hall by napping his antagonist on his scent box, which brought t he claret quickly.
1835		G. Kent Modern Flash Dict.
1841		Bell’s Life in London 22 Apr. 4/4: His ogles well guarded by protruding brows [...] and his scent-box eschewing [...] that species of Roman vanity which every professor of boxing well nose.
1848		Flash Dict. in Sinks of London Laid Open.
1860		Sporting Life (London) 17 Oct. 3/4: Tyler dropped a smasher on Gillam’s scent-box.