This situation can be identified by the presence of overlapping dates for different
periods of Italian coverage, as shown in example 1. It could also happen that one
of the coinciding periods is wholly within the other period, as shown in example 2.
In any case where there are coinciding periods of Italian coverage, each period must
be credited to the extent possible.
Example 1:

From To 
Weeks of Coverage

Kind 
Periods: 
1. 03/15/62  07/21/63 
73 
OBG 19, 300L 

2. 06/05/63  10/15/63 
16 
OBG 41,900L 
The number of Italian QC's for period 1 is equivalent to 73 weeks = 5 QC's +8 weeks = 6 QC's;
13 weeks
for period 2, it is equivalent to 16 weeks = 1 QC's +3 weeks = 2 QC's.
13 weeks
Crediting:

1962 F1 F1 F1 F1
1963 F1 F1 F2 N
(F2)
Since Italian coverage overlaps in the second quarter of 1963, only one Italian QC
is credited for that quarter.
Example 2:

From To 
Weeks of Coverage

Kind 
Periods: 
1. 01/05/39  12/30/39 
21 
OBG 

2. 04/06/39  08/22/39 
18 
SM 
The number of Italian QC's for period 1 is equivalent to 21 weeks = 1 QC +8 weeks = 2 QC's;
13 weeks
for period 2, it is equivalent to 18 weeks = 1 QC +5 weeks = 2 QC's.
13 weeks
Crediting:
Since Italian coverage overlaps in the second quarter of 1939, only one Italian QC
is credited for that quarter.