"I believe I see the letters "TAIWA" in the second picture. If that means "Taiwan" with the "N" lost in the casting process, I imagine the stove is a recent reproduction. It's hard to tell with cast iron."
"The socket looks old, as does the bit of chain that's visible. I think it's an original, though as Tom says, these fixtures have been reproduced. If some of the glass has been replaced, which looks possible but hard to tell, that would…"
"It is a typical English or American movement of late 18th/early 19th century. The movement itself is not likely to have a name on it. However, as I mentioned previously, the false plate probably will. Accessing it required removing the dial. The…"
"The dial and probably the movement behind it, is late 18th to early 19th century. It may be English or American. There is probably a "false plate" connecting the dial to the movement, and this will likely have a name cast or punched into…"
"Looks like it could be a really nice Empire-style frame from the 2nd quarter of the 19th century or so. The pictures are not clear, so it's difficult to tell. The photo may not be the first thing that was in it, but if the frame is on the late…"
"It is not a painting, but a photo-lithographic print of one, as can be seen in the third photo, showing the enlarged signature and copyright notice. The dots of the photo-lithography process are noticeable."
"I don't know whether refinishing would affect the value of a piece like this, but it looks as though the existing finish has good potential for restoration, with a bit of touching up of worn and scraped areas, cleaning, and waxing."
"The secondary wood looks like oak. I think that means it's likely not to be American. The finish wood, if mahogany is very light, almost bleached mahogany. The piece certainly has a look of age about it."