I don't know David, this 1890 gun seems to have more than just a passing resemblance to a "true" Syracuse gun (at least as far as you seem to have defined one).

What's the difference between this Quality 2 and Mr. Garver's 1889 gun (which you identified earlier in this thread as a being "true" Syracuse example)?

The hard-data on these transitional-period guns is clearly, pretty spotty (w/lots of missing years of information it seems) and you mentioned yourself earlier that these were "not the years that you focused on" in your still very-impressive body of research. The numbers and dates for these guns continues to change when "new data" (from previously unknown guns) becomes confirmed.

For me, at least from what I can visually confirm and understand, I'm going to call this Quality 2 unit a "Syracuse" Elsie. You can certainly still talk me out of that, but from what you've mentioned so-far, I'm just not convinced that I'm wrong.