I’m no expert on these, but I can add that the coin reads ‘乾qian 隆long 通tong 寶 bao’ (top to bottom, then right to left) on the
obverse, and in Manchu script ‘boo chiowan’ (board of revenue) on the
reverse.
The bottom photo is the
obverse, and needs to be rotated to the right 90•, the top photo rotated to the left 90•.
Emperor Qianlong 1736-95 CE reigned over the zenith of the Qing dynasty. I am not aware of any cash coin from this period weighing anywhere near 76 grams. It could be a later made
good luck charm, but unfortunately I think it is far more likely to be a modern machine struck tourist token. Just my opinion though.