Accurate Parts line of starter motor components served automotive aftermarkets. Another part of VLN, Victoreen Instrument Company was a leader in developing and producing electronic components and equipment. In 1981 Sheller-Globe acquired Radiation-Medical Products Corporation, a manufacturer of radiation medical instruments and x-ray measuring instrumentation. The acquisition of this particular company had little to do with the automobile industry, and the decision to become involved in an unrelated area reflected a new disposition to capitalize on any market that looked extremely productive. Radiation Medical's operations were therefore merged into Victoreen. In 1982 Sheller-Globe acquired the automotive business of Detroit-based Olsonite Corporation, a company which made steering wheels and injection-molded plastic parts and components. In 1984, Sheller-Globe acquired Northern Fibre Products Company, manufacturer of insulation and sound deadening materials and products for vehicle interiors. Sheller-Globe's plastics manufacturing capabilities were also expanded in 1984 with the addition of the Engineered Polymers Company, a custom molder of structural foam cabinets for computers, word processors, work station components, communications devices, networking systems and other business machines. Downsizing Beginning in 1980, Sheller-Globe disposed of some additional units which were not as profitable as desired. Following a downturn in North American school bus purchase volumes as the children of the Baby Boom completed school, industry over-capacity among school bus manufacturers and a downturn in sales of funeral coaches, the company discontinued bus and professional car manufacturing at Superior Coach in Lima in late 1980, and portions of its assets were sold. Mid Bus, a small business based in Lima, resumed production of the smallest Superior school buses, beginning with a workforce of 7 persons. The small business grew successfully, and after a move to a much larger facility at Bluffton, Ohio, was acquired by Collins Industries in 1998. In 1981, the funeral car business of Superior was sold to Tom Earnhart, and as of 2007, continues to operate as a portion of Accubuilt, Inc., using the Superior Coach Company trade name. In 1987, the Leece-Neville division was sold to Prestolite Electric. That same year the Globe-Weis company was sold to the American Trading and Production Company. In the mid-1980s, Sheller-Globe began fine-tuning its operations, largely abandoning automotive replacement parts (aftermarket) sales. Instead, it focused more on original equipment interior automotive products for the automotive manufacturers. Sheller-Globe's automotive related divisions supplied a wide range of original equipment parts, components and assemblies to the vehicle manufacturers. Products included