Man measuring a hole in the ground with a tape measure

Painting of a castle situated next to a river

Man wearing a cap and working on a machine in a factory

Old photo of a large building with a clock tower

Drawing of a machine on a piece of paper with some text written on it

Group of men standing next to each other in front of a building

Black and white photo of a large building with a clock tower

Man in a suit and bow tie standing next to another man

Engraving of a large building with a clock on it