70s-80s steel frame, head tube badge says zebra deluxe, has a zebra rearing on its hind legs, colors on badge are red, white, blue (???). Components are shimano 333 downtime shifters, dia compe brake levers, shimano thunderbird front dérailleur, shimano eagle rear dérailleur, shimano 333 5spd freewheel, not sure what brand cottered double crankset. Please help me identify make/model and possibly year. Thanks in advance.