Theodore J.Gaskell;79;of Belle Vernon;died Saturday;Aug.9;1997;at 9:30 a.m.in his home.  He was born Jan.28;1918;in Wilkinsburg;a son of the late William and Ida Wagner Gaskell.  He was the former owner and operator of Modern Art Studio in Charleroi for many years.  He was a U.S.Army veteran of World War II.  He was a member of Syria Temple;the Ancient Accepted Scottish Rite 32nd;both of Pittsburgh;and the F&AM Charleroi Lodge 615.  Friends were received in the Blair-Lowther Funeral Home Inc.;106 East Independence St.;Perryopolis;on Sunday and will be received there Monday from 2 to 4 and 7 to 9 p.m.and Tuesday until 11 a.m.;when a service will be held with the Rev.Paul M.Ragle officiating.  Burial will be in Belle Vernon Cemetery.  A masonic service will be held Monday at 8 p.m.by the F&AM Lodge 615;Charleroi.  He is also survived by several nieces and nephews and great nieces and great nephews.  The Blair-Lowther Funeral Home Inc.is in charge of the arrangements.