Sarah Coventry  line began in 1949 .  It  is know by many names  such as SarahCov,Sc,Sarah & Sarah Coventry . The jewelry line was sold in home shows until  1984. It appears to be making a comeback.

From the SarahCoventry Website

Sarah Coventry, the first direct selling fashion jewelry company
in the world, has been empowering Women to celebrate their personal
sense of style and independence for more than 50 years.
We pride ourselves in concentrating on all areas of women’s lives;
forming a “family” of Style Consultants, Hostesses and Customers
to forge the foundation for all women to celebrate their spirit of
independence; enhancing lives and shaping their future. What makes
Sarah unique? We’re a legendary brand of fine fashion jewelry with a
ground floor opportunity to build a legacy for generations of
independent business women.