Well it's not a Parker, but...
 

Just had to pick up this Joseph Lang 12 bore when I came across it recently. The very good bores measure .725 and .728, and are choked cylinder and modified respectively. She weights 6.9 lbs. Overall it is a very solid gun with no major issues. I need to fit a new hinge pin to put it back on face, and slightly re-shape and re-engrave the right hammer which is a fairly close replacement. The barrels ring like a church bell, and there are no major wood problems to speak of. The barrels deserve a refinishing, and I haven't decided on how far I want to restore the rest of the metal/wood. She sure would like nice with a new color case, with cleaned wood and refreshed checkering. What do you guys think?

Can't wait to take her out after grouse and woodcock this fall.

Nice find! Is that lever straight or serpentine? By the shadows it almost looks to be serpentine. What is the barrel length?

A beauty- shoot it as it is
 

Why tie it up with a gunsmith/refinisher for a long time- shoot it, if it's a snug tight, use some of Morris baker's great spreader loads-- Dean-- as Lang is the german word for Long- I would guess 30" barrels- what's your pick??:cool::cool::bigbye:

It is a straight lever, but the action can be opened with the hammers cocked which I have not seen before.

Yes, they are 30" barrels.

I like the opening with the hammers cocked. That is a nice feature. You'll like that; it's safer. You can open it before letting the hammers down when around others or a dog. I think only my Remington hammer gun will do that.