You are invited to the Osborn Cannonball House for the free annual open house and Christmas party on Sunday, December 2nd from 2pm to 4pm at 1840 Front Street in Scotch Plains. Join us for hot mulled cider along with goodies to eat. Featured is our Victorian Christmas tree and 1800s winter clothing display. Join us for caroling around our restored 1885 Mason and Hamlin reed pump organ. Costumed guides will conduct tours. The museum will be closed for January and February. It will reopen Sunday, March 3rd in the New Year.