National Match Barrel and Bushing

Have these been in a gun before? If not they might be worth something. If they have been fitted find a sucker on eBay, that will bring as much money as is possible for them. I would guess that someone that knows what is what wouldn't go much over about $40 for the barrel and bushing if it has been fitted and only then if the bushing is tight on the barrel. To re-fit the barrel to a performance level above normal the hood and lugs will need to be welded up and recut to hard fit the barrel to the gun it will be used in.

Yup.
The 7------ is a blueprint number for NM barrel and bushing, it is not supposed to match. I fear the ---6011 is the serial number of the gun they came out of. Dollar value is not high.

I know a guy who has trouble making up his mind. He ran one barrel through about three different guns. He was lucky, each gun was a little tighter than the one before and the barrel could be refitted to each in turn. He would be out of luck if he wanted to put it back in #1, though.