"original office" is a correct and usable phrase in written English.
You can use it when referring to a specific office that is still in operation that was established during its original founding. For example, you could say, "This company has been operating in its original office since 1997."
I watched the original Office.
The original office was renamed praetor urbanus, and the new office was called praetor peregrinus.
He bought the company's original office, in a strip mall, out of bankruptcy.
Why Mr. Gervais, so refreshingly nasty in the original "Office," felt the need to make this potty-mouthed Hallmark card of a show is anyone's guess.
Until now, the Port Authority has held steadfastly to the requirement that all of the original office space be restored at the site.
* RLM Public Relations opened a third office, in Los Angeles, joining the original office, in New York, and the office in Washington, also recently opened.
The exhibition designers, Gallagher & Associates, and the "content developers" Barrie Projects and the curator, Kathleen Coakley Barrie, begin their double-edged treatment soon after you enter the lobby, where the original post office boxes are still in place behind video screens and text panels.
The original post office building (1768) is located there (the building is now the seat of the Madrid community).
Surviving relics include the Masonic Hall, Gold Hill (once a rich placer ground), St. Joseph's Catholic Church, Boise Basin Museum (in the original post office [1867]), and Boot Hill Cemetery.
The original post office, renovated and reopened by James Rosenfield, the mart's owner, now carries a handful of unique goods like Leica cameras and Tretorn shoes, and still provides postal service.
The original post office opened in 1847 and was run by church warden Tom Clements from a building next to the rectory.
