CDI/1
FOR SINGLE ITEM COUNTS
TOTALS CARRIED TO 999
ZERO RESET KNOB AT LEFT

CD1/2
TWO COUNTER UNIT
CARRIES TOTALS TO 999
RESET KNOB AT LEFT
BLANK STRIPS FOR MARKING ITEMS COUNTED

CDI/6
5 COUNTER KEYS + TOTALIZER CARRY TOTALS TO 999
ZERO RESET KNOBS AT LEFT & RIGHT
BELL SIGNALS EACH 100 STROKES FOR PERCENTAGES
MARK CELL TYPES COUNTED ON TABS PROVIDED

CDI/9
8 COUNTER KEYS + TOTALIZER CARRY TOTALS TO 999
ZERO RESET KNOBS AT LEFT & RIGHT
BELL SIGNALS EACH 100 STROKS FOR PERCENTAGES
MARK CELL TYPES COUNTED ON TABS PROVIDED

CDI/13
12 COUNTER KEYS + TOTALIZER CARRY TOTALS TO 999
ZERO RESET KNOBS AT LEFT & RIGHT
BELL SIGNALS EACH 100 STROKES FOR PERCENTAGES
MARK CELL TYPES COUNTED ON TABS PROVIDED

CDI/16
15 COUNTER KEYS + TOTALIZER CARRY TOTALS TO 999
ZERO RESET KKNOBS AT LEFT & RIGHT
BELL SINGALS EACH 100 STROKES FOR PERCENTAGES
MARK CELL TYPES COUNTED ON TABS PROVIDED