箇舊最初的開發,是始於銀(?)的發現,遠在元朝(一二○六——一三八八)的時代。銀(?)的採掘,即非常興盛,至明末才開始發現象(?),清康熙四十六年(一七○九)産錫四三五噸,最高產量,在一九二九年達一一·八○○噸,工人人數最多達十萬人,自抗戰開始,由於交通的阻塞和錫價的低落,產量逐年減少,由一九三九年一○·○五○噸突降至一九四三年的三○九六噸,最低更降至一九四五年的一六○○噸,(解放前私礦工 箇 The original development of the old started from the discovery of silver (?), Far behind that of the Yuan Dynasty (one two hundred sixty-one to eight eight). The mining of silver (?) Was very flourishing. Only the beginning of the Ming Dynasty began to reveal the phenomenon (?). In the 46th year of the Qing Emperor Kangxi (1709), the output of 435 tons of tin was the highest. In 1929 Since the war of resistance began, the output dropped year by year due to the blockage of traffic and the drop of tin prices, which dropped from 10.05 tons in 1939 to a mere 800.000 tons. From 1996 to 1996 tons in 1943 to a minimum of 1,600 tons in 1945 (before the liberation of private miners