This rug appears to be a hand-knotted rug from the city of Kashan, Iran, circa 1910-1920s. The value is very difficult to pinpoint because it is hard to see the condition of the rug. The holes are not as important (because they can be repaired) as the wear in the center of the rug. That wear in the center isn't cost effective to repair. However, that being said, a good estimate of the rug's value as-is is $800-$1000.

It is possible that I'm mistaken in what I'm seeing in the photos. However, in Photo 11 of 13, there appear to be many white marks visible in the center of the rug. The term for this is "sar-nakht" which literally means head of the thread. In general, these are only visible when the pile has been worn down (if it hasn't, they can be dyed). If the pile is thick in those sections and all over, then the rug is in good condition, not counting the holes in the side (which can be rewoven). If the pile is in good condition and you have the holes repaired, then the value would be about 4-5 times what I mentioned.

The rug's name is "Kashan." You can tell this from the color scheme and the way the ends of the rug are finished. Detemining a rug's age and origin takes a lot of practice. Every region has a different a color scheme they use, and different countries have different ways of weaving and tying off their fringe. There are other factors as well, but getting these down first will help a lot. You have to spend a few weekends in a rug shop observing to get started, unfortunately. This stuff isn't in any (good) textbooks that I've found.