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.
Condition: As noted from photos some damage. A series of creases at one corner of the bodice and is rather weak at this point. I think it should be reinforced with a piece of cardboard on the back side so it doesn't break further. A small tear on the other edge. A couple creases in the collar and sleeve. Length of the template is 21" x 15"
If you are a fashion history buff, researcher, or even a museum, this is a wonderful treasure.