BOSTON (CNN/WTVM) - A time capsule buried under the Massachusetts State House was removed Thursday after crews working on a water main break stumbled upon it.
It is believed to be the oldest unopened time capsule in the U.S., and contains artifacts that date back to 1795. It was first buried by Governor Samuel Adams, Paul Revere and William Scollay.
The capsule was last unearthed during emergency repairs to the state house in 1855.
It likely contains a collection of coins that date between 1652 and 1855, an engraved silver plate, a title page from the Massachusetts colony records, among other items.
The items were repacked when the original cowhide container deteriorated, and put back in place when the cornerstone was reset.
"We have a small concern that in 1855 when it was re-interred, they washed it before they put it in acid, for some of the coins, and we're concerned whether there was any corrosive effect of that, but we'll see when the box is opened.," Massachusetts Secretary of State William Galvin said.
Officials say the capsule will be restored and preserved at The Museum of Fine Arts in Boston.
The museum will x-ray the box over the weekend and will reveal its contents next week.