Wow! Look at this….a great old sewing tool template card diagram for a lady’s bodice. No date but style suggest late 1890’s. This dressmaker pattern is adjustable with punched holes and printed numbers for fitting to the correct size.
The cardboard is stamped also with Oakland Ca. I would assume a dressmaking school. Although I found no information on the Internet regarding this school, it is similar to another from Van Dames School, (Dressmaker Journal), Chicago.