Tay -

I still do some cards and keep my Beckett On-Line Price Guide to check price.

The 1999 UD Piece of History GU Bat Card set includes:

#ARM Hank Aaron/ Babe Ruth/ Willie Mays SP Item has no pricing.

#XXX Instant Winner Card Item has no pricing.

#BR Babe Ruth/ 50 #/50 Item has no pricing.

#PH Babe Ruth #/350 $1,000.00

#EB Ernie Banks #/350 $250.00

#EM Eddie Mathews #/350 $300.00

#EM Eddie Murray #/350 $200.00

#FR Frank Robinson #/350 $200.00

#HA Hank Aaron #/350 $300.00

#HK Harmon Killebrew #/350 $200.00

#JF Jimmie Foxx #/350 $200.00

#MM Mickey Mantle #/350 $600.00

#MO Mel Ott #/350 $200.00

#MS Mike Schmidt #/350 $150.00

#RJ Reggie Jackson #/350 $120.00

#TW Ted Williams #/350 $300.00

#WM Willie Mays #/350 $250.00

#WM Willie McCovey #/350 $120.00

So you're looking at a total set value of around $4,500.00 (It's actually $4,390 for these listed, I'm adjusting for the Sheff as I don't see it listed)

Hope this helps!!!

- Chris