Rawlings used the Hall of Fame Flannels tagging from the mid 1950s through the early 1960s. It was their premier flannel at the time, and the Dodgers wore them as well as the Cardinals. Very high quality material... I used to have a Joe Pignatano Dodgers Home Flannel from 1960.
Oshman's Sporting Goods was a high-end chain of Sporting Goods stores based out of East End, TX. They expanded heavily into the Southern California area in the early 70s, and other peripheral areas as well.
Below is a detailed history of Oshman's which you may find interesting and pertinent to your jersey. Hope this is helpful...
https://www.company-histories.com/Os...y-History.html