Well done Bernard you are good at these slightly off-beat ones.
I thought Richard was in there on the trail.
The year is the year of the Pig ie of the first FV1609 ie 1956.
The title of the technique seems to confer a certain sense of science to the technique which claims amongst many things, to find arithmetical errors, forged notes & stamps, various medical conditions including hypertension, agriculture,food that is bad for you, purity of water etc.
I bought this booklet for £1, for the same price I also purchased the Constitution of the USSR, I'm still trying weigh up which is the more believable.:-\