Above, five pulp pieces from illustrator J. Oval, including Ronald Kirkbride’s bestseller A Girl Named Tamiko (with its suspiciously non-Japanese-looking cover subject), and two from Sergeanne Golon’s famed Angélique series. Sergeanne Golon was actually a pseudonym for French author Anne Golon and her Russian husband/historical researcher Serge, aka Vsevolod Sergeïvich Goloubinoff. J. Oval was a pseudonym for artist Ben Ostrick, who was a major illustrator of both books and magazine articles in the 1950s and 1960s. These covers are circa late 1958 to 1962.
Tamiko looks more like a Tanya or a Theresa to us, but what do we know?