Here is a link to the first edition Das ABC des Schneiderhandwerks - Die Weste: The Waistcoat construction and a view of variations of the waistcoat style and fashions.
Private Study Only
https://www.dropbox.com/scl/fi/q1bt9r18m28ft4nz4u6kn/ABC-4-Weste.pdf?rlkey=sb5tzd04d00avt4phrrx9ftl6&dl=0