The Högbo Model 75 lathe was manufactured by a Swedish company, Högboholms Mek. Verkstad 340 37 Torpsbruk who also made a useful little precision bench milling machine. 
Looking to be based on the American Atlas 6-inch (though with a longer bed and the addition of a V-way for the saddle) little is known of the lathe's history and if any reader can supply further details, especially a set of high quality photographs or a copy of the sales catalogue, the writer would be pleased to hear from them.