This was a complete factory set at one point. However, someone opened the first two packets, then put them back in the box. The Strawberry rookie is among the loose cards. The last packet, which contains numbers 607 and up, has been removed completely. To keep the box snug, they added extra puzzle pieces. The good news is that the packet which contains cards 222-276, where the Don Mattingly rookie should be, is among the 10 intact packets.