The document print is the original print on which a reproduction is based. For "Netherfield Park" in the Hartfield line (the brown fat quarter on the right) I found a few swatches in an old nine-patch quilt that looks to date from about 1830. I think many of the fabrics in the nine-patches are about twenty years older than the set.
The original for "Netherfield Park" was a roller-printed cotton done in blue. These early roller prints are remarkably detailed because the print designers working after 1800 used the same technology that engravers used for banknotes. They adapted the copper plate's surface to a cylinder format and changed the printer's ink to dyer's formulas. Hartfield colorways include Knightley's umber brown, Emma's hedge green, ivory and Marianne's plum.