In the late 1930's, the lace basketball was being replaced by the the more uniform basketball as we play with today. It should be noted that universities and colleges were reluctant to use the new basketball. H.V. Porter, creator of "March Madness" and Executive Director of the Illinois High School Association in the 1930's and 1940's, did more than anyone else to promote the use of the new ball nation wide. This ad is from July, 1941.
This promotional ad is from 1940 and the teams pictured using new basketball health products were, Granite City (1940 state champions), Morris, Aledo and Champaign High Schools.
This basketball ad is from 1941 and suggests how uniforms should be cleaned before being put into storage.