1. turn off flash
2. place coin on flat surface with indirect natural light. maybe a window sill in a cloudy day
3. move phone about 3in from coin
4. zoom in using your fingers until the coin comes into focus
5. hold phone steady. if you cant then place something on either side of the coin at that distance and lay phone on top. this will hold it steady and allow you to zoom and take the photo without any blurring
without better photos AU58 or MS64