几年前,在滨海边区游击队区尼古拉耶夫斯克遗址耕作之后的土地上,当地学生们发现了一件青铜铸造的信符(见图)。这件青铜信符的外表为一面凸起并雕成鱼的形状。学生们将铜符交给了游击队城的雕刻家С·Н·戈尔宾科。后来,该符为苏联科学院远东分院历史、考古、民族志学研究所的中世纪考古研究室获得,保存至今。该信符保存得十分完好,表面有薄薄的铜锈, A few years ago, on the land after cultivation in the Nikolaevsk ruins in the marina area of ​​the marina, local students found a bronze casting letter (see photo). The bronze letterhead looks like a raised and carved fish. The students handed the bronze symbol to С · Н · Gobinko, a sculptor in the guerrilla city. Later, the symbol was obtained from the Medieval Archeology Laboratory of the Institute of History, Archeology and Ethnography of the Far Eastern Branch of the Academy of Sciences of the Soviet Union and preserved till now. The letter kept very well, the surface of a thin copper rust,