Rolled tone holes are not a feature of Buescher saxophones. I have never even heard of a Buescher with rolled tone holes. Chances are it is a Conn sax, or a Conn stencil and not a Buescher. Most stencil horns made by Conn did not have rolled tone holes either, but a few did. I suppose it's possible that it is an experimental model with rolled tone holes but I highly doubt it.