I found a 'Vintage' crystal satin glass Elephant powder jar. And I'm not sure how to tell if its real or fake. I keep finding pictures that look just like it and there selling for about $100 to $150. I read somewhere that I should watch for Molding lines. I don't know what that is. Will someone please help me.

Molding lines would feel like a raised edge and sometimes are sharp. You can usually see or feel them where a seam would be from a casting / mold.

Oh darn. That means mine is a reproduction. There is one on top of the elephant. I don't know if its sharp. Sharp compared to what lol. But its definatley there. And there's some really dull ones on the sides of the jar. You almost can't see them.