Mitchell was a Parker guy apparently. A Parker that was being hawked, or at least displayed, at the same time, and in the shop that sold many Mitchell guns in the seventies, was probably also Mitchell's, but was not identified as such. It was, as I recall, a unique GH Grade 16 gauge with 40" original Parker Vulcan Steel barrels. I took the gun to be a parts gun or a sleeved gun at the time. However, knowing more now about the Parker records, I am thinking it was an original Parker, assembled at the factory "the easy way", with a set of 40" barrels that were in stock, rather than building a new set of barrels with the steel marking proper for the GH grade. Another possibility is that the gun was rebarrelled with Vulcan Steel, at a price a little lower than the Parker Special Steel barrels would have cost. Mitchell's known Parkers were mostly very unusual in configuration, indicating that he had ordered them himself, rather than buying them used. Murphy