Centered, near-perfect card that captures Norm's offseason move from New York to Kansas City as a key piece of the deal that put Roger Maris in pinstripes. The Mantle/Maris home run tandem obscured Siebern's own standout seasons for the A's and Orioles, notching three straight AL All-Star selections (1962-64). This is one card from a group of high-grade singles in this auction. The PSA MINT 9 grade reflects elevated back centering and their population report shows none graded higher.