It was not just photographs that were used for a printing press, however ... The paper contains photos of engraving work being done on lead slugs, which were being put out of use at the time.
A few machines have truly changed the world, such as the wheel, steam engines, or the printing press. Maybe 3D printers will be on that list one day too. But for today, you can use your 3D printer ...
The first printing press in America was set up in Cambridge under the guaranty of Harvard College, during the presidency of Henry Dunster. From this press, established nearly 300 years ago ...