I recently went to the museum near my house with a camera and found that they’ve got a whole truckload of old machinery from the steampunk era (1870-1920).  They’re mostly adding machines, but there’s some punch-card machines and slide-rules in there too. For those who are new to the steampunk idea, here’s a snippet from Wikipedia:

Steampunk is a subgenre of fantasy and speculative fiction that came into prominence in the 1980s and early 1990s. The term denotes works set in an era or world where steam power is still widely used-usually the 19th century, and often set in Victorian era England-but with prominent elements of either science fiction or fantasy, such as fictional technological inventions like those found in the works of H. G. Wells and Jules Verne, or real technological developments like the computer occurring at an earlier date. Other examples of steampunk contain alternate history-style presentations of “the path not taken” of such technology as dirigibles or analog computers; these frequently are presented in an idealized light, or with a presumption of functionality.

These images are generally over 1000px wide.
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Circular Slide Rule c1895
Pocket Table c1900
Brass Slide Rule c1700
Pocket Lord's Calculator
Pocket Calculator Slide Rule
Masive Brass Lord's Calculator
Desktop Adding Machine c1890
Primitive Computing Machine
Computer Interface 1880
Punchcard Computer c1900
Punchcard Tabulator c1880
Punchcard Tabulator Reader
Punchcard Puncher
Punchcard Tabulator c1880
Desktop Computer 1890
Calculator Keys
Desktop Programmable Computer 1930
Desktop Computer c1880