For once, here in Hampshire I can see your photographs very clearly - thanks!

Looks like an excellent find, although to British eyes the beavertail fore-end does look odd. We don't have beavers here...

I would be fascinated to know how much it weighs - I am guessing 5 lbs 12 ounces?? 1966 sounds about right for that serial number, and the colour case hardening is superb!

HB