Terry Harper & David Keon Autographed Memorabilia. Check out Terry Harper & David Keon Autographed Magazine Page Photo - PSA/DNA. This Magazine Page Photo that has been personally hand signed by Terry Harper & David Keon. It has been authenticated by PSA/DNA and comes with their authentication sticker and matching certificate. PSA/DNA is the leading third-party authenticator in the autograph industry. This product is the perfect collectible for any Montreal Canadiens fan or memorabilia collector. Commemorate the great career of Terry Harper with this autographed item, or check out other souvenirs at SportsCollectibles.com for more products autographed by Terry Harper. When it comes to NHL Memorabilia, SportsCollectibles.com offers a wide selection of Terry Harper autographed memorabilia. Product will ship in 1-3 business days with free shipping on orders over $200. Buy with confidence as this is an authenticated Terry Harper autograph.