I received my second NPN card in the mail this week from Topps. This time it came from the 2015 Topps Chrome set. You can't tell from the scan but it's a refractor.
2015 Topps Chrome Refractor #130 Terrance Gore
It's always fun to receive free cards in the mail! But a part of me is beginning to wonder what the rules are regarding Topp's requirement to give away inserts. If they're giving away inserts as common as the one above, how many do they send out a year in total? How are the drawings conducted? It seems like it would be such a time consuming operation with all of the envelope opening and the card sorting and then the packaging and mailing!