Mark Appel Houston Astros autographed memorabilia. Add this Mark Appel Autographed Rawlings Official Major League Baseball - 2013 #1 Pick Inscription - Certified Authentic to your Houston Astros signed memorabilia collection. This product has been authenticated by Sports Collectibles and comes with a Certificate of Authenticity and matching taper-evident hologram. All Sports Collectibles memorabilia is backed by our 100% Money Back Guarantee. Get your authentic Mark Appel Autographed Baseballs from Sports Collectibles Online. This bold Mark Appel signature is authentic and can be an excellent addition to your man cave, home or office.