2017 Panini National Treasures #101a is a baseball card featuring Buster Posey of San Francisco Giants. This card belongs to the Gold parallel.
CardReactor identifies this as a memorabilia card.
Other Buster Posey cards in this set include #101 Base and #101b Gold parallel.
Explore other sets featuring Buster Posey: 2018 Topps Holiday, 2018 Topps Opening Day, and 2019 Topps Opening Day.
