It is difficult to be precise in dating early wigs as there are few datable 17th century wigs with which to make comparisons. A wig made of human hair worn by The Reverend Alexander Peden, a covenanter, now in the collection of the National Museum of Antiquities of Scotland, is dated circa 1660 and published in Perukes and Periwigs, Janet Arnold, p.28-9.
The construction appears to be similar to that noted by Jean-Baptiste Thiers, circa 1690, on page 31 of his Treatise on Wigmaking. He describes a linen cap with net interior, with horsehair sewn onto the linen cap. There are ear pieces attached, known as 'corners'.