That is beautiful!
Back in the 1970s, my father noticed an old organ stored in a chicken coop on a relatives farm up in Kentucky. It had belonged to my great grandmother and was from around 1900 or so. My dad got a U Haul trailer and took it back to Florida and restored it. It had an ornate top piece with a mirror and shelves that was mostly intact. He had to replace the bellows and straps for the pump mechanism. And it plays! I dont know how they determined it, but my dad said it was made of black walnut.
My brother still has it.