Several flint fragments were recovered from concretions that could possibly be remains of spall type gunflints. None were found in association with gun parts making positive identification unlikely. Dr. Ned Woodall, director of Archaeological Laboratories, Wake Forest University writes:

During the first half of the 18th century, gunflints were made on flakes and in cross-section they have a wedge shape. It was not until the latter part of the 18th century that the familiar square or rectangular gunflints, made from flint blades rather than flackes, were routinely produced. Unfortunately, at the same time of the spall gunflints and continuing through the 18th and most of the 19th century, flints made for use with a strike-a-light also were wedge-shaped and were produced on flakes. So, found without confirming context, early spall gunflints and flints from strike-a-lights are essentially identical.