FE,
That S/N is also consistent with a 1916 Flues.
Do you have pics of the action flats and barrel flats? The Smokeless Powder Steel markings on the top of the barrel are also consistent with a Flues. The dog engraving as well.

The Lefever Nitro Specials I have and have handled all said Lefever on top of the barrels. I guess it could be a NS but I doubt it.

Last edited by ithaca1; 11/11/15 11:11 AM.
Bill Johnson