The one on the right is an Eveready just like the cheapies they sell today, only in metal. Probably made in the 70's. I wouldn't think it would sell for much. Heck, a couple months ago, one of my customers threw one just like it away, so I fished it out and gave it a new home.
The one in the middle looks like it may be an Eveready of some type. I think my dad has one just like it. I think this one is also from the 70's. It's probably the same value as the other Eveready.
The one on the left looks like a Ray-O-Vac Sportsman. I think they sell for around $10 on Ebay, if I remember correctly.
Even if they aren't worth a lot of money, they're still neat, and are a piece of flashlight history. Good find, raggie!