A 100-year-old time capsule was removed from a cornerstone of the Alberta legislature on Monday but won't be opened until the building's centennial in September.

"We won't know for sure what's buried in that time capsule until it has actually been opened and recovered," Speaker Gene Zwozdesky said.

"Could it be newspapers? Perhaps. Could it be money? I hope! Could it be items that broadly represented life in Alberta at the time? I'm sure."

After Zwozdesky made his remarks, stone mason Steve Lalanchette gently chipped around the suitcase-sized copper box which was embedded in the base of the building. He then passed it to Zwozdesky and Culture Minister Heather Klimchuk.

The unopened time capsule will be on display at the legislature for the next couple of months. The box will be opened on Sept. 2 when the legislature celebrates its 100th anniversary

This was both a challenging and unique job for the crew. They first had to pull back a 3,500 pound stone before gaining access to the capsule.

"You don't know what to expect really," Lanlachette said. "We saw it was a copper box. That would make sense for those days, 100 years ago. You want to keep something nice and safe and no water seeping into it, then copper would be the choice."

The province plans to put another time capsule in place of the old one.