Dick is right on US.
LAC is Milton Page, Los Angeles Club, 1932, 4 colors. Los Angeles, CA

Not to be confused with the Harp mold with "Los Angeles Club" spelled out. It is from E. St Louis, IL.

Blue WW is:
WW Emison
Box 217
Happy Camp, CA
No date on the card.
5 colors - Only 300 blue made.
The exact same WW was also shipped to Rock Island, Il. The only way to tell them apart is the colors and 2 of the colors are the same. No blue in the IL order. So much for Mason's promise of "Non Duplicate" chips.