Complex sentence: A retrospective exhibition and sale of artworks found in Coggins' home after his death was held at the Wyomissing Institute of the Arts in late 2006, consisting of about 300 previously unseen oils, watercolors, and other printed materials.
Split into simpler sentences: A retrospective exhibition and sale of artworks found in Coggins' home after his death was held at the Wyomissing Institute of the Arts in late 2006. This consisted of about 300 previously unseen oils, watercolors, and other printed materials.