圖片上的角落可以在藝穗會哪個角落找到？它的作用是什麼？

這個小鐵牌位於冰窖樓梯附近的牆上。它紀錄了舊牛奶公司的貨𨋢位置，當時舊牛奶公司利用此貨𨋢運送貨物和冰塊。

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Where do you think this photo was taken? And what was it for? The billboard is hanged beside the stairs at Vault. The function was to marked the location of lift, which used by the Dairy Farm to lift blocks of ice.