I realize this isn't game used, but it does mention Mastro:


New York — The 1909 T206 Honus Wagner that Las Vegas businessman Brian Seigel sold to a mystery collector in February for a record $2.35 million has been touted for years by hobby officials as the Holy Grail of baseball cards. But it has also been dogged by shadowy, persistent rumors that it was cut from a sheet decades after it left the factory — a major taboo in the world of vintage cards — and later trimmed to enhance its value.

The hobby rumor mill was fueled by reports of photographs that proved the card, once owned by hockey superstar Wayne Gretzky, had been altered to improve its condition. Few collectors or dealers, however, have ever seen those photos, and they have never been made public.

Until now, anyway. The New York Daily News has obtained photos from a hobby insider that show what Alan Ray, a New York-area collector who sold the card to memorabilia king Bill Mastro in 1985, has been saying for years: The card was cut from a sheet and later doctored to enhance its appearance and value.

full long story:


http://www.ajc.com/sports/content/sp.../0625card.html