A little more info came in:
Dimensions: it comes in three pieces that lift apart.
Overall: 72" high.
top: 4" high, 48" wide, 12" deep
case: (within top and bottom overhang: 56" high, 48" wide, 11 " deep
bottom: 13" high, 49" wide, 17" deep
weight: unknown, and maybe unknowable without taking it all apart
it has not been refinished, restored, or damaged in the 60 years we have had it
The back of the left side is "frail"; the wood is "dusting" and may need repair or replacement; we did not do anything with it.
The back of the right side was bad enough so that we put a piece of silk (also a family antique, "family lore" says that a grandfather or great grandfather imported it) over it to hide the "dusting"
"Family lore" says the cabinet came from Germany in the 1850s, but we don't know that for sure. I do remember my mother (born in 1902) talking about sitting on the front shelf of the bottom as a small child.
We will try to take the pictures you want. The shelves are held together with small triangular inserts that I have never seen before. The sidewalls of the drawers show signs of rough carpentry; they are not smooth and show no signs of sanding.
We'll get at the pictures and send those along
...and in another email he says the "dusting" is not wood worms, but that the wood is so dry and old that you get dust on your hand when you touch it and it is fragile in places, an will require special handling/crating for shipping.