The Regal Doll Manufacturing Company of Trenton, NJ and New York city, USA, was previously know as the German American Doll Company and changed their name again in 1937 to the Regal Doll Corp.
In October 1933 they acquired the Horsman Doll Company and continued to produce dolls under each trade name of Regal and Horsman. Regal made all composition dolls and composition and cloth Mama and Baby dolls using the trade name of 'Kiddie Pal Dolly', in the 1930's they added Patsy types.
The Horsman line of dolls were the superior brand, thus by late 1937 the Regal name disappeared and by 1940, only the Horsman dolls and company name remained.
What's it worth? Take a look at this Regal Doll price guide: sold listings for a value indication.