This is a 4 layer board with silk screen on the 
component (top) side only.  The middle layers
are power and ground.

ReadMe.txt      This file
board2-c.bps    Bottom Cream
board2-c.drd    Drill Data (3 digits)
board2-c.drl    Excellon Drill Tooling
board2-c.L1     Layer 1 (top)
board2-c.L2     Layer 2
board2-c.L3     Layer 3
board2-c.L4     Layer 4 (bottom)
board2-c.oln    Board Outline
board2-c.slk    Top Silkscreen
board2-c.smb    Bottom Solder Mask
board2-c.smt    Top Solder Mask
board2-c.tps    Top Cream