Of the three documented types of Delaware Valley slatback chairs, the two sidechairs ilustrated here represent a prototype of the second category in their inclusion of a flattened lower slat edge. For another example of this regional form, see lots 91 and 92. For further information, see John Bacon, "Delaware Valley Slatback Chairs: A Formal and Analytical Survey," Newark, Delaware: Master's Thesis, University of Delaware, Winterthur Program in Early American Culture, 1991.