1986 Viking Yachts Motor Yacht
The PowerBoat Guide had this to say:
Viking Motor Yacht version of Viking 48 Convertilbe (1985-1990) with fully enclosed aft deck was luxurious. Well-appointed interior features three large staterooms, home-sized galley, booth-style dinette, spacious salon with L-shaped settee, built-in entertainment center. Enclosed aft deck -- complete with wing doors, wet bar -- serves as a second salon. Note solid teak joinery, ful tub in master head, washer/dryer compartment, generous storage.