These casters are stamped “SELLERS”, which means the were used a Sellers Cabinet (Competitors to Hoosier Cabinets). What really sets these apart from other casters is not only the brand name stamped on them, but the ant traps above the wheels! Water was poured into them to create a “moat” around the legs so that ants could not climb up on to the cabinet and get into whatever food might be on it.
They are in great, solid shape. The wheels are 1 3/8″ in diameter. The ant trap measures 1 7/8″ across. The shaft is 5/16″ thick, heftier than many casters this size.