New Spain (or Colonies) coins to identify please! [решено]

These were given to me to identify but I'm having trouble. I can pass on what is on the flips: (I don't know why they come out upside down, can't seem to correct that..). Thanks for the help

New Spain, Pieces of 8, Pirate Pillar Dollar, 1745


New Spain, Pirate 4-bits, 1745


Spanish Mexico, Pirate Silver Cob(?), Cut from bar, 1580-1750


New Spain Colonies, Pirate 8 Real Peso (Bust), 1792

Not really my area of expertise, but i'd call fake on all four...
Are you sure they are even silver?
Loruca

No they aren't, definite copies