The surprises keep coming inside Government Center Station.
Just a month after construction crews discovered a hidden “Scollay Under” tile mosaic — a feature that dates back to the creation of the train platform in 1916 — the MBTA announced that workers have disinterred yet another Scollay Under mosaic, this one encased behind a wall of concrete blocks.
The new mosaic, discovered two weeks ago, is near the inbound end of the platform on the opposite side of the stairs from the sign revealed last month, MBTA spokesman Joe Pesaturo said.
Government Center closed in March for a two-year renovation. Since then, crews have been tearing down parts of the Blue Line platform to install new escalators and elevators.
Demolition work began on the station’s boxy entrance this week, Pesaturo said. By Friday, the entire above-ground structure will be gone, to be replaced by a 40-foot glass entryway.
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