Well I was hoping someone will do it someday and they did. The National College of Physical Education and Sports of Taiwan digitized together a collection of 46 Taijiquan classics. A few of them are even handwritten copies, while others are printed in the 1930s.
Well the scanned images may not be of high resolution but it is good enough for research or personal use.

So here it is The Tai-chi Martial Art Digital Archive.
One of the manual in this archive is  by 17th generation xiaojia master, Chen Ziming. His work, The …