in the late 1920s and early 1930s, the pmg planned to institute c class stations which would have had their advertising limited to the station owner(s) only. when the plan was abandoned in 1931, the pmg was about to issue such a licence to the akron tyre co in melbourne; in lieu of a c class licence, akron was given a licence for a b class station but with a number of limiting conditions on its licence (see 3ak for details).