Possible mystery - first clue

[Jim McDougall]

While I do not have anything to add to the topic here, as arms from these categories are far outside my usual fields of study, I just wanted to say how impressive this thread is!

Though the initial post began with a somewhat negatively postured query, the responses and discussion has proven extremely informative for those of us not particularly well versed in these arms. Most impressive to me are the detailed and well texted posts complete with cited references and notes to comparative examples .
Above all, even conflicting observations or errors are pointed out with completely gentlemanly discourse and response, thus constructively enhancing the discourse rather than distracting it.

It is wonderful to see interaction with great knowledge and expertise being shared here, and a textbook example of what our forums are intended to be.

Thank you so much gentlemen,
Jim