Nudge;
I too have a Lefever 12 which weighs 6 lbs. Mine is to date I believe the highest numbered one we have recorded, unless another has come to light which I am unaware of. It has two numbers only 4 digits apart; 73,338 & 73,342 as I recall. It would be from the Ithaca era & is an H grade with
"Best London Twist" barrels. Is fitted with an Infallible SST, probably original to the gun, but is a non-ejector. The rest of my 12 gauge Lefevers weigh from just over 7 lbs up to 8 lbs.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra