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davidcyclebackAutographed Goudeys and Play Balls are not rare.  Autographed T206s and similar E cards are rare.  The rarity and value of the player's signature in general effects value, with most T206 players being in genral limited.  Greenberg and Wait Hoyt are amongst a few HOFers that are rather plentiful on Pre-War card.  T206s signed by Cobb, Frank Chance and Eddie Cicotte exist but are rare. Condition of signature and overall presentation of card effects price.  Most Pre-War signed cards are in lower grade  ... There is a strong and increasing market for signed Pre-War cards.