The main building in this photo is the existing factory. The construction site where the new shop buildings are being built is visible behind the two pedestrians at the left of the photo.
This photo also shows that the factory was extended at some point. Here's a view of the same building dated to 1910. Note that at the left edge, below the chimney, there's a section of the building with a door at ground level, two windows on the 1st floor, and a single window at the 2nd floor:
In the 1940 photo, that section is in the middle of the photo, with an additional three new sections added to its left.
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The main building in this…
The main building in this photo is the existing factory. The construction site where the new shop buildings are being built is visible behind the two pedestrians at the left of the photo.
This photo also shows that the factory was extended at some point. Here's a view of the same building dated to 1910. Note that at the left edge, below the chimney, there's a section of the building with a door at ground level, two windows on the 1st floor, and a single window at the 2nd floor:
In the 1940 photo, that section is in the middle of the photo, with an additional three new sections added to its left.