Without having some real specifics on this rug , much would be guesswork here from me .
The size of the rug , knot count & so on would be great for starters .
One deal to be rather watchful about with these old fellers is condition , such as dryrot,moth damage/eggs,sun bleaching & so on .
What I do like about what I see is that this item appears (from photos only) to be in somewhat unrestored condition .
If indeed this one had been owned by a collector (rugs , not garbage) it would have surely had been cleaned @ least once .
Is this one yours , chigato , or are you considering buying it ?