Green’s Dictionary of Slang

razzo n.¹

a nose.

1899		C. Rook Hooligan Nights 40: Ourt comes bloke wiv a razzo like ’arf a boiled beetroot.
1936		J. Curtis Gilt Kid 61: If the queer fellow tried to come any acid he would get hit right on the razzo.
1950		P. Hoskins No Hiding Place! 191/2: Razzo. Nose .