What kind of medals are these? Not a REAL gold and silver medal!!!!! Nepal? But what? 99.99999999% certain its not real, but might it be silver? Valuable to someone? I've posted before, lots of traffic and interest but no definitive answer yet.
the nepalese coin is a rupee, the oliver cromwell coin is a modern copy of a classic british coin and is made of cupro-nickel.
Re the last picture (brass watch fob?). I found an organization called "American Society for Metals, Island Empire Branch" by googling "ASMIE". It's grown from an early blacksmiths' organization. You might want to contact them.