Introduction to the 188 Old Frame Tai Chi Quan Form (188 老架太极拳)
Based on my research, the lineage of this form appears to derive primarily from two sources. The first is Quan You, the father of Wu-style founder Wu Jianquan. Quan You studied Tai Chi with the Yang family, formally under Yang Banhou, and is also said to have received direct instruction from Yang-style founder Yang Luchan.