What printmaking technique did margaret preston use?

1. the period of artistic history from about 1600-1750, when the highly ornamental, expressive style of art, literature, and music flourished in europe 4 medieval 2. the period of artistic history from about 1750-1820, characterized by orderliness 2 romantic 3. the period of artistic history before 1450, characterized by religious emphasis and themes 1 renaissance 4. the period of artistic history from about 1450-1600, when artistic style moved away religious themes to a more man-centered focus 6 twentieth century 5. the period of artistic history from about 1820-1900, characterized by a highly emotional, imaginative style 5 classical 6. the period of artistic history from about 1900-2000, with a style characterized by embracing new ideas and throwing off constraints 3 baroque

Describe the discovery and importance of this piece of ancient african art.

Look at this image this is an example of an a, pfemba b, quipu c, bisj pole d, igbo figure