This Saturday’s annual town election includes a Proposition 2½ override question and a special election on whether to recall Board of Health member Tom T. Constantine. Polling hours are 10 a.m. to 5 p.m. at the Maquan School, 38 School St. In the only contested election, Selectman David W. Soper faces Kenneth A. Mitchell Sr., who served on the search committee for the police chief. The proposed property tax increase of $210,411 would fund part of the town’s fiscal 2014 assessment to the Whitman-Hanson Regional School District. The recall election, which resulted from a citizens’ petition, will have two questions. The first asks if Constantine, who is the board chairman, should be recalled. If the recall succeeds, the question asks whether the seat should be filled by Constantine or Gilbert B. Amado, a former Board of Health member.