Roy, I dug further into this, and the mold appears to be an 18-star design rather than a uniquely identifiable “Forest Club” mold.

Robert Eisenstadt’s antique mold index catalogs it as MD-57 — “Stars (18)” and describes it as a rare mold, reportedly used in the New Orleans area during the 1940s–1950s. The index does not identify the original manufacturer or tooling owner.

So far, I have found at least two documented casino uses that appear to match this design:

- Club Forest, New Orleans area — listed as an original 1940s chip using the star mold.
- Old Southport Club, Metairie, Louisiana — ChipGuide lists red $1 and green $5 examples as “Stars.” The casino operated from 1882 to 1950.

The Old Southport records are especially useful because ChipGuide also shows U.S. Playing Card sample/order records dated March 30, 1936 and March 5, 1937. Those records identify U.S. Playing Card Co. as the manufacturer. The sample cards themselves show the name B. C. Wills & Co., Detroit, which strongly suggests B.C. Wills was the dealer or distributor rather than the actual maker of the chips.

My current conclusion is:
MD-57 was probably a rare U.S. commercial chip mold used by more than one casino, with Club Forest being one documented user and Old Southport another.