No one ever had 2 Mickey Mantles but I have a nice collection of cards from 1969-1974 for my trouble, including this Dave Winfield RC:There was always one big prize card in each collection we appraised. We alternated who picked first each collection and this card was an obvious first choice. Dave Winfield was a superstar whose rookie season was sooooo old. It may have been my best rookie card until I pulled a Pujols Topps Stars RC a few years ago. I was always impressed that Winfield was drafted by teams in the MLB, NFL, NBA, and ABA. I once missed seeing one of his homeruns at Memorial Stadium in Baltimore because we could not find a parking space. He was rounding the bases when we walked in.
We would log every card for our "clients": year, brand, player name, number, condition, and Beckett value. All on notebook paper. I would gladly do this again if anyone ever asked.