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Model 52 Ion laser
The Model 52 Ion laser. Debuted in 1968, it was the first laser to sell more than 10,000 units. It cost less than $10,000.
Close-up of the Model 52
A close-up of the Model 52. The laser tube in this one was refurbished in the 1980s.
Coherent commemorative T-shirts
What Silicon Valley institution would be complete without a collection of commemorative T-shirts? Coherent turned 40 this year. Though the company is older than most Silicon Valley tech businesses, the industry was already starting to grow. Hewlett-Packard and Shockley Semiconductor were already global figures.