Rebuilding a Grade 7 NID

This gun had some "high mileage" on it.  It was off the face, opening on firing and the hammers and sears had worn into their pivot pins.  A new hinge pin, bolt and hammer and sear pins were made and fitted.  The sear engagement was also adjusted to correct a two pound left-side trigger pull.  Ithaca, and every other American maker, advertised that their guns "never shoot loose".  I guess never isn't as long as they thought.