Continuing the same strategy when it fails to work usually doesn't lead to success.
I don't know why no one has responded...maybe like me they don't have any of the information you are asking for? Or maybe there is something about your request that doesn't help to elicit the specific response you are after.
No one is obligated to let you handle the original of the recent reproduction...... maybe they have some reason for keeping it all private...their right if they want to.
What specific measures are you missing? Is there no feasible way to derive them from the photos you have??
Nor would I ever assume that anyone is "obligated" to let me handle the original or recent reproduction??
I am just simply seeking in my research, the best avenues to obtain the needed information and so forth, doing the best I can with what I have to work with.
Though, I'm certainly open to any suggestions you may have, if you have any regarding a better way or possibly a more successful approach?
Anything's possible.
As far as deriving measurements from photos, I can only make vague assumptions based on lifeless photos when enlarged. Of course I'll do what I can with what I'll have in the end, but for now there's no reason to not ask questions and venture out on a limb to see where the original is these days or the piece that was auctioned off, so as to aid in giving myself a more stable foundational jumping-off point as it were to go from....if possible.
The major details I'm seeking are that of the barrel's dimensions,...swamped or not (if so at what area)?...etc.
Also the dimensions of the butt stock,...the rest is much more feasible for me personally to make an educated guess at.
The possibility of seeing the original, for me, is more so important in regards to being able to visually study the architecture of the article within its historical context of an early 18th century fowler. Photos are well and good, and are helpful of course, but we know they just don't compare to holding the real thing in your hands, if and when possible. That's all....