Stick I saw that link when I searched but that wasn't it. I think Bill might have got it right. In trying to remember when and where I saw it I think it might have been on a school field trip to Montgomery, Alabama in the early 60s when we visited a museum dedicated to artifacts from the Confederate States of America. Some of the artifacts were uniforms which may have included swords so that may have been what it was designed for and I might have gotten the long tails part from some other reference like Theo gave.
The design of the chair was fairly simple as in Bill's link but in my memory I thought I saw it as padded.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.