The signals presented on rugs and fabric, even if they are in the same form, have different symbolic meanings according to the regions in which they are used, produced and different ethnic groups live. This research assumed that the ‘S’ presented on a certain rug has certain meaning but not a simple one. And investigated the form of expression, regional characteristic, feature of the time, meaning of use of ‘S’ through examining literatures and samples which are related to the woolen rug produced between twelve and nineteen centuries in the Middle East. The research findings are as follows. First, the signs presented on domestic animals of nomads, presented by each tribe, are for showing ownership of the animals. In contrast, the ‘S’ presented on rugs fabrics can be referred to a sort of brand mark, which is related to copy right, rather than ownership. Second, the expression form of ‘S’ can be classified into three forms: graphing of vine of grape tree which refers to Christ, ‘S’ presented on its own and presented between various patterns hidden in them. Continuous representations are shown in rugs of religious painting, which have been presented between the Middle and Gothic Ages. The single representation, which is presented repetitively or in a single form on particular section on the rug. And the hidden form is shown on rugs which have been produced after nineteen century and this can be found with circumspection as some patterns are presented negatively seems to be done intentionally. Third, the rugs which ‘S’ is presented on have been produced in Armenian region or the one belonged to Armenia historically in which Armenia's florescence. It is assumed that the ‘S’, presented on the rugs, refers to which is the first letter of ‘ ’, the god of Armenia, as a symbolization. Fourth, the ‘S’, in this research, referred to dragon assuming based on Persian carpet and dragon of China interpreting generally. However, the ‘S’ still refers to Christ for Armenian people that they tired to confirm their ethnic identity through their religion. Apart from the ‘S’, there are many sorts of special sings presented on the woolen rug for this research. Therefore, this paper can be a very critical basis for further research which are to investigate the signals presented on fabric and their ethnic identity, the sort of weaving technique and characteristic.