I haven't seen one in use for a long time, but I remember them from the '50s, so when I found one in the wild, I picked it up.  The owner didn't know what it was and looked funny at me when I told him.  That was somewhere around 1986...

What's a "Dogbone" wrench?  I was under the impression that they were double-enders with multiple sockets at each end. The three below would be examples of what I call "dogbone" wrenches.  Am I mistaken?  Please advise.

Wrenchmench,

I agree that all the wrenches you show are what I have heard called  dogbone wrenches.  I am not sure what constitutes a "dogbone" wrench other than it looks like a dogs bone.  I looked up the Sterling and found it listed at a couple auctions as a dogbone, thats the only reason I call it that.
Jim