29/12/2007 · Hereafter is an alphabetical list of the widely known makers of machine made marbles. Note 1: Akro sold box sets from five to more than a hundred per box. It also produced metal box sets and sacks of marbles. Note 2: During the Great Depression Akro had three fourths of marble sales. Note 3: Akro Agate was established in Akron, Ohio in ...