Join Date: Dec 2004
Location: B.C. Canada
As you know this came up before, so I will repost the the only contribution that I can on this topic so that any new readers can review the information. I have not seen this pattern enough to form an educated opinion myself.
In Andrew Mowbray's The American Eagle-Pommel Sword 1988 on Pg 58;
Naval Officers' Sword ca. 1795 (Francis Thurkle)
One of the more commonly encountered Thurkle hiltings featuring a counter guard containing a pierced diamond see detail." (attached below)
All the Best