There are valid arguments pro and con on "restoration".
Those old open-ends are a dime a dozen because there are so many of them out there. I would do as has been suggested and just wipe them down with oil (or wax) to prevent any further deterioration. The big combination wrench is rusty, and (as mentioned) if the rust is not removed, it will just continue to get worse.
Are you buying or selling or collecting? All depends upon what your goal is.
If you're selling, leave it the hell alone. As the owner of all kinds of old oddball items, I want them exactly like they are. I wouldn't think about trying to remove the dent from the fuel tank on my 1913 Aladdin model B kerosene lantern or "fixing" any number of other things around here - it would destroy any "value" (be that monetary or intrinsic) the piece might have.
Some will disagree. There are two camps on this. I've done stuff like what Pendragon did with that drill, but it was for my own use on an item I intended to
use, not hang on the wall or set on a shelf to look at.
There was an episode on
Antiques Roadshow years ago in which a lady brought an old side table in for an appraisal. The original finished had been removed and replaced with modern stain and polyurethane. The two hosts marveled at the lady's table, and told her it was worth a lot of money. Then they added had she not refinished it, it would have been worth about 50 times as much. Something worth considering - a collector is a collector, whether it's side tables or wrenches.
So no, this gem will not see a buffing wheel: