Mirann/Pac's description: The SMB3 Mario graphics, assembled to be used with the 32x32 Character Tilemap Kit patch. This includes the SMAS and SMA4 versions, as well a "custom" one (made of minor edits from the SMA4 version).
More information in the readme!
KPhoenix's description: Provides a full range of Mario frames for all the original SMW Mario animations in the style of SMAS. (Note: This pack is the only SMAS: SMB3 Mario graphics available. All other sets are based on SMA4: SMB3)
mod edit: combined with kphoenix's submission which doesn't require the 32x32 character tilemap kit patch while mirann and pac's does.