BOSTON (WHDH) -- Landmark Boston restaurant "Locke-Ober" closed indefinitely.

A sign posted inside the eatery's front door said it was closed for business.

A number of posts on social media and restaurant blogs have also mentioned the closure.

Locke-Ober’s website offered a short thank you to customers:

“Locke-Ober is currently closed for business, pending the sale of our building. From all of our employees and proprietors, past and present, we thank you for your support and the opportunity to respectfully serve the community of Boston for the last 137 years. We have experienced many joyous celebrations with you and hopefully provided you with warm memories, memories which will live on. Thank you, it has been a pleasure.”

"Locke-Ober" first opened in 1875.