此照片展示舊式的露台結構。圖中可見金屬托架固定在牆上，用作支撐木樑，建築物每層的托架之間都有窄小的金屬柱子。The photo shows the older type of balcony construction. Metal brackets were fixed to the walls to support the wooden joists. The thin metal columns between the brackets at each level can be seen.