From 1948
Hollycraft Created by Hollywood Mfg. Co. New York
The two-sided hangtag was first used in April 1948.
Jewelry & gold · a closer look
Hollywood Jewelry Mfg. Co., Inc mark: Photo
Other Hollywood Jewelry Mfg. Co., Inc marks
c. 1965
Hollycraft
The undated Hollycraft mark without a copyright symbol is described as probably circa 1965.