The man generally regarded as the greatest shortstop in baseball history - Honus Wagner - had his signature cut and added to this Centennial first-day cover as he did not sign it itself. The autograph couldn't be any stronger, as it is graded GEM MT 10 by PSA. The "Flying Dutchman" played almost his entire 21-year Hall of Fame career with the Pirates and was age 65 when this FDC was issued.