Books don't come much more politically incorrect than the Bulldog Drummond novels of H. C. McNeile (published under the pen-name Sapper). The first in the series was Bulldog Drummond, published in 1920. Apart from being politically incorrect these books are enormous fun. My review of Bulldog Drummond can be found on my book blog here.
Things get even more politically incorrect with the second book, The Black Gang.
The first four Bulldog Drummond novels from the Carl Petersen tetralogy which I recommend in its entirety.