The former location of the plaque. (Via KRQE-TV)

A piece of Microsoft history has gone missing. The big plaque that marked the first official home of Microsoft in Albuquerque, N.M., was recently stolen, according to a report out of the city.

KRQE-TV reports that the plaque was installed back in 2006 at the site of the company’s first offices, near the Albuquerque fairgrounds. It recently disappeared, leaving an empty rock.

Police are hoping that publicizing the theft helps to track down the thief.

Microsoft co-founder Paul Allen tells the station in an email, “I’ve got great memories of working long hours in that office, and Bill and I were happy it was there as a way to thank the city of Albuquerque for its role in starting Microsoft. I can’t imagine why someone would want to steal it. If it doesn’t turn up, I’ll make sure it gets replaced and installed in a more secure fashion.”

Here’s what the plaque looked like, via Flickr.

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