Roberta "Robin" Cuplin (1936-2004) was a popular Suburban Chicago artist and printmaker starting in the 1960s.  Art Institute-trained, she was active through the 1990s. 

The work at hand, an 18 1/2 by 13 inch watercolor double-matted to 24 by 18 inches dates from 1987.  Depicting Lake Superior's famous Rock Harbor Light House, the painting is ink-signed in the field.

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