I see two snap on ratcheting screwdrivers and a snap on hard handled screwdriver (or maybe pick). Might be a few more items like that. $120 would make me consider it, depending on how much more snap on is in there, and if those ratcheting screwdrivers work.
Several snap on prybars on the side of the tool box.
I think a lot of the pliers are Snap on too, but in that poor of condition, they aren't worth much.
Also see a single Snap On wrench (new script) in the second photo. The flare nut wrenches might also be Snap On, or the full polish craftsmans. Photos aren't good enough to tell.
$120 would probably be a fair deal for both parties. Definitely not $1200 though.