Paul:  The slot in your front sight base looks wide to me.  The thickness of a Krag front sight blade is .050 inches.  Measure the slot of your base before investing in a replacement blade.  Reproduction blades and pins are available from S&S Firearms, Glendale, N.Y. (Their catalog can be viewed on-line).  Original blades and pins occasionally show up on e-Bay and GunBroker (search - Krag).  How were you able to salvage your rear sight mounting holes?  Are you related to Ron Steinmayer of Bloomfield Hills, Mi.?  Chuck