It seems like you have some very interesting rugs!
I would place this one it at or around 1950's - 70's. Age is somewhat difficult to determine. The one thing throwing me off a bit was the dual colored selvedge. The colors are very good and rich and the knot density is good measuring around 500 KPSI or so.
The color variation throughout the rug may be oxidation (i believe this is in the ivory?). I just cant see it that well
as for a very loose value, I would imagine between 1,000 - 2,000 auction estimate depending on severity of fringe loss, color variation, or other. However, age has a lot to do with value of this type of rug too. it could be even older. This is a very loose number as the market has been soft and I do not have the rug in front of me. It's very difficult to say for sure because even light variations in the ivory can really affect value. I've accounted for that in my numbers somewhat but not for the rug being much older.
The image below circled in green is what I
thought may have been color run, but it may very well not be. Circled in yellow is what I saw as slight variation in ivory tone throughout the rug.
After determining what I thought the auction value would be, I messed with the rug estimator pro which placed it at an average of 3k-4k retail depending on age, subtle stains & veggie dyes. Heres the
base starting point We should look at all your rugs, we may need to refer to you to someone to take a look at a few of them in person
Out of curiousity, does the rug have silk highlights in select white areas?
RugPro attached the following image(s):