'Unequalled for comfort, The Vi-Spring - Vibase combination'. The World's most luxurious bed equipment. The Vi-Spring - Vibase combination is unquestionably the finest bed equipment ever made to ensure perfect rest. As soon as you lie on this soft resilient bed you feel the close, even surface of the Vi-base give their fullest resiliency and ensure a degree of comfort that quickly entices sound, restful sleep. Date: 1933