Permalink Reply by Null on November 7, 2014 at 11:36am
It's a forgery because it's a forgery. Simple as that. There is not one "give away", it's a very bad forgery all around. It's like asking "Can you tell me why this turd is a turd?" You can't really explain it, you just *know* it's a turd. You have to study authentic signatures enough and then you can just tell. This is an amateur forgery we have seen 1,0000x here. It's not something that will just "click" overnight, there is plenty of information on this site that myself and others have written that will help you spot common fakes/authentics etc.
Here is a comparison with an authentic one. The top is AUTHENTIC, the bottom is yours which is clearly fake:
Mantle would typically follow through on his M's, for example there would be a tail leading to the 'a' in mantle. Also, the K E Y in Mickey are very flat. Mickey had a special flare to his K's and Y's...that forgeries just can't duplicate.