Lance not an issue, I try to look for items that prove or disprove the era also, one thing to consider
at the end of the civil war any cannon left in Richmond would have been under Federal control, an oddity
like this would have been taken as a prize, and latter given away for a memorial, most likely by 1880/90
it was already on Long Island. if you like give me your email address and I'll send you the larger photo's
One thing to note the vests that are worn have a rounded lapel that for the most part I believe had disappeared by the 1890's
There are things that happen with photos.....
1 scan of a reproduction of a photo some detail is lost.
2 size reduction by this site makes detail is hard to see
3 how the original photo was embellished/retouched when made, some times details were added with paint, buttons etc,
I looked at the photo on the magazine and they appear to be suspender buttons.
I am writing the Army Ordnance Museum at Aberdeen about the original photo's in their collection, I will be up that way
in may and will see if I can arrange to view them and or get reproductions of them. perhaps there is something written
on the back that led them to believe they were from the tredeger Iron Works.
If it can be researched and shown that this cannon is Confederate and from Virginia it would be nice to see it returned home and restored
instead of sitting forgotten in the weather on Long Island.
Allen <><