LEGO minifig authenticity I bought 3 mini figures from Amazon because I wanted specific mini figures and did not want to spend $30 plus doing so with bag ordering and opening. I got the figures and they look authentic. 

The LEGO logos are on the nub of the torso and the little bridge part of the legs. However, not on the bottom of the legs.  I have 20 something minifigures that I opened from bags, they all have the logo on the bottom of the legs.  So I'm a little confused by it?
Some of the minifig parts that are officially made in China (often including the Collectable Minifigures) don't have the copyright/logo stamp on the inside toe - I noted that in a comment to my answer on What does the imprinted information inside bricks mean?