The first two are genuine - Sonoma Tote Nubuc, Plaza Bag (probably the Large but the seller's measurements don't match either of Coach's)
The third has an always-fake serial number and is a fake style never made by Coach. The strap grommets look silver and the strap buckle is brass.
I'm just curious but is the plaza bag missing it's turnlock?? I don't see it in the pics! Plmk! Thanks