BRIDGEWATER — During the month of February, The Burnham Library is offering visitors an exhibition called “Postcard Views of Bridgewater,” featuring selected images from the collection of Marty Sagendorf. The library, on Route 133 in the center of town, is open Tuesday from 1 to 5pm; Wednesday, 9 am to 6 pm; Thursday, 9 am to 5 pm; and Friday, 9 am to 1 pm.