I think you are missing a 4 it looks like the unstruck barrel weight is 4lb 4oz and the 3 is the Grade like stamped on the water table if I remember correctly nice gun for sure

The 4 would be the unstruck (before final filing and polishing) barrel weight for 4 lbs even. Is there was a superscript number with it that would indicate the number of additional ounces. The 3 is a new one for me being that far towards the breech.

Very nice grade 3, one any of us would be proud to shoot/hunt with. It won't put your kid thru college, not even a quarter at today's inflated prices, but probably command $3 to 5 grand. Nitro Specials are solid quality guns, but were an entry level shotgun. We love seeing guns like yours come to the surface, thanks for sharing yours.

That's a very nice gun in beautiful condition. You won't have any trouble selling that gun.

Good for your Dad that he gave you direction on what to do with it. No reason not to grant his wish; the product will be in whatever your daughter brings to the world!

The numbers on the underside of the barrels is the weight of the barrel set; 4#, 3 oz before they were 'struck' for final finish. In other words, before filing and sanding or whatever process was used to get to final finish.