The size of your rugs is 9x12ft .from the appearance of them,they look like Persian design ,the feature of Persian silk carpet is the round shape in the center .
To tell the quality of Persian carpet from below:
1. Density: you could count the knots per square foot ,the more the better .
2. Material: to tell different material ,the only want to to fire them and then smell. To see the burn test from here
http://www.fabrics.net/fabricsr.asp The best Persian silk carpet should be pure silk .but there are many fake ones,such as silk with cotton ,silk with wool and so on .
Barbara
Henglida Carpet Co.,Ltd.
Website:www.silkrugs.com.cn
Email:silkrugs@yahoo.cn