SEC/9/3/1
                      
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              Unidad documental simple            
                      
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                2 Jun 1921-8 Jun 1923              
                                    
                  
                  
            Parte de            ZSL Secretaries           
              Out-letters of Peter Chalmers Mitchell (Also contains out-letters of M B Saunders, Poultry Department, from 20 Feb 1917-26 Jul 1917)
