According to this source:
http://quilthistorytidbits--oldnewly...ice-brooks.php
the Alice Brooks byline started in 1933. Fan quilts were extremely popular in the 1930's, and this Alice Brooks pattern is an interesting variation with the unusual scallops.
The fabrics to me look like 40's and 50's. However, peoples' stashes can included fabrics that stretch for several decades.