These are images of the original CP/M Plus (3.0) system disks for the Basis 108.

serial # cp3/857/ - 00230

BASCPMP1.DSK = Disk 1
BASCPMP2.DSK = Disk 2
BASCPMP3.DSK = Disk 3
BASCPMP4.DSK = Disk 4
BASCPMT.DSK  = Text files
BASCPMB.DSK  = CP/M 3.0 boot disk