1968 – Harwood Official League Baseball no. CC
August 28, 20181958 – Harwood Centennial League Baseball No. HCL
February 13, 2018
Harwood No. ON
Harwood Official National League
The original and only double cover baseball for exceptional durability and liveliness. Official size and weight. The most durable baseball available today. Actually contains an inner leather cover separated from the outside cover by a layer of fine wool yarn. An exclusive offering by Harwood.
source - 1968 Harwood Baseball Product Catalog