I've always liked these coins, very high quality from the Mint of Poland. This one has a different finish to most. An ounce in weight and around 150-160. http://agaunews.com/mercury-is-the-second-of-the-mint-of-polands-domed-solar-system-silver-coins/ Source: AgAuNEWS.com
I just made the mistake of googling for images of popping a blackhead Do not make the same mistake I just did.