ALT Image shows "Boekdrukkunst" by Philips Galle, a 16th century black and white engraving print of people working in a printing press, with people conducting tasks relating to the various steps of printing. A large printing press is on the right hand side, and is being operated by a man in a hat, while another man in a much bigger hat stands to the side, pointing. Some things don't change, do they?!

ALT Image taken from an old textbook, with a diagram showing three magnifying glasses. A caption reads "Fig. 151. Simple Microscopes with Different Mountings"

ALT Old style black and white etching of a solid metal machine with stone wheels on either side. On the solid metal face are the words "Washburn Machine Shop, Worcester, Mass."

ALT Old black and white etching diagram of pipes and valves

ALT black and white etching of an old billow-box camera on a wooden tripod