Hello Revere456 and welcome to the wonderful world of Spanish Colonial 8 Reales. As to your question regarding edges, per our resident counterfeit Guru Swamperbob, there should be overlaps 180 degrees opposite each other because the coins should have been edged with a dual bar edger.
On your coin posted, I am concerned about the texture of the coin itself. It appears in the photos to be very "mushy" and granular which can be evidence of a cast coin or a die made from molding where the sharpness of a strike is lost in the process. I lack the ability to make definitive judgements from a photo but just wanted to express my humble opinion. I am not very familiar with Potosi coins, my area of expertise is Mo mint coins and I know strike characteristics vary from mint to mint.
On your coin posted, I am concerned about the texture of the coin itself. It appears in the photos to be very "mushy" and granular which can be evidence of a cast coin or a die made from molding where the sharpness of a strike is lost in the process. I lack the ability to make definitive judgements from a photo but just wanted to express my humble opinion. I am not very familiar with Potosi coins, my area of expertise is Mo mint coins and I know strike characteristics vary from mint to mint.




























