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.