When it comes to happy accidents it doesn't get much better than this. A masonry crew discovered a time capsule encased in the stone wall of an Almonte condo building, which once housed the Rosamond Woolen Mill.

Ottawa Morning's Hallie Cotnam happened to be in the neighbourhood after hearing a tip about a "museum emergency."

These stone masons, Matt Gordon and Tyler Rath, discovered the time capsule while working on a restoration project in Almonte, Ont.

The metal boxes, corroded and damp, were filled with historical treasures.

This letter listed the items in the time capsule, which included newspapers, coins and a photograph of the mill's founder James Rosamond.

The newspapers: an Ottawa Daily Citizen, Almonte Gazette and Industrial World were dated August 17, 1880.

The oldest objects were assorted coins, which date back to 1858. The time capsule's note explained that the coins were removed from an earlier time capsule before being placed into the 1880 time capsule.

Listen to the full story here.