As best as I can make out, the markings on the lances are..
LANCE 1
SHAFT 
    
                                                   E        (approx 5mm high)
  
 crown
      75
       E
     crown
         71
         E
BUTT  
   
              crown
                  06
                  E
             crown
                 K  (?)        
      
05  (approx 5mm)    
 90    (approx 5mm)
            
 4   (perhaps size number)
POINT     
  
              T.P.  (approx 5mm )       
       
 '3' 
               
              crown
                     71
                      E      
               crown  (possibly, badly rubbed)
                 
 14  
LANCE 2
SHAFT  
 
     
crown
    75
     E
crown
   73
    E
             17    (17th Lancers ??)
BUTT              too much patination to see any markings
POINT            
   T.P.  
                          ??? ' 27
                 ???   could be  SRN  or SQN  
  
 Any suggestions as to the possible meanings of some of the markings gratefully received.....as is any other comments or information
Kind Regards David