Printer’s blocks are a curious item. I see a few here and there at antique stores. Not as coveted of a find as wood type is to this press guy. Matter of fact I don’t always find printer’s blocks interesting. There are certain subjects that will catch my eye. I have found a copper faced block of an old “Little Giant” printing press. Strange enough, I have found two different sizes of the same press. Yesterday I happened on an 11” x 8” copper faced block of a huge printing press. Or was it a printing press? After a little research I found that it was a Duplex reel-fed flatbed perfecting press.
The Duplex’s day-to-day role was some where between a cylinder press and a web-perfecting stereotype press used for circulations larger than 10,000. Like the large stereotype presses the Duplex feeds the paper from a roll, prints on both sides of the sheet and delivers a folded paper.
Early presses were designed for general trade. As circulations increased for major newspapers, printing moved from a trade to an industry. Multi-cylinder presses were developed to meet the growing demand for increased pages per hour. Even greater demands lead to the development of type-revolving machines and eventually web-fed rotary presses to meet the need for volume and speed. Not all city newspapers had the circulation to justify huge printing presses and stereotyped printing plates. In 1889, the Duplex Printing Press Company produced a reel-fed flatbed perfecting press to meet the needs of smaller newspapers and general printing. The flat bed design allowed the newspaper lock up type and photos much the same as if they had a cylinder press. Thus, meeting the demand for increase volume with out the expense of converting to stereotype production.
Letterpress Studio

Can you imagine seeing one of these beast in action?