You don't have to do any of this stuff. The underweight is huge. Common sense dictates that you should first prove the existence of an 1895P Morgan Dollar (without a mint mark), like the one in your photos...
Just received something very similar, it's an 1878 Trade Dollar.
Not had time to weigh it yet, but the dimensions are correct, and it's not magnetic.
I knew it was a copy when I bought it (cost me £1.50, incl p&p), as I was curious. It was sold as a Miao Silver Collectable Coin. I know that Miao Silver isn't silver, in the same way that Nordic Gold isn't gold.
Fine for a novelty coin, it's even worn and has "tarnish" painted on it.
http://www.facebook.com/NumismaticsUK
I'm not an expert in any kind of coins, but I reckon I'm good at research and will do my best to help. Feel free to tell me my identifications/valuations/gradings are wrong. It's the only way I'll learn.
Thanks all for the expertize. also think its fake, seems like under a magnefying glass, a mint mark has been altered. might have been a "I".? also the "9" on 1895. stranglely it passed a silver and magentic test?