Ronnie
I did collect Sportscards in the 1970's. My first price guide was the Sport Americana BB card Price Guide by Jim Beckett. And, it lists this LEAF BB card set as
1948-1949.
I told Jim (a good friend of mine) that this set was strictly a
1949 issue. Eventually, Jim corrected his Guide to reflect the 1949 date.
TED Z
T206 Reference
.