You are bidding on two scenes from my memories!  The first drumhead is a 14" Remo Ambassador coated head, signed by Mike Portnoy, John Petrucci, and James LaBrie.  Signing was immediately after their concert at The Electric Factory in Philly on February 25th, 2000.

The second drumhead is a 14" Remo PTS Bright Pretuned coated head, signed by the full band - Mike Portnoy, John Petrucci, James LaBrie, John Myung, and Jordan Rudess.  The date was written by Mike Portnoy.  This head was signed at the Electric Factory in Philadelphia, PA on August 4th, 2000. 

Both sets of autographs / signatures were obtained immediately after the shows behind the venue.

Any questions, please let me know.