I saw something that also had a small spoon and maybe a fork which seems unrelated but it had the scissors as well. Like a kit to be all purpose or something. If you know what I mean. The outer of the other kit was much more ornate but since you said there were scissors with it then that made me think of the other case thing I saw. It was about the same age and dimensions. .
I am away from home this weekend, but will post a picture of the scissors. I believe that this is a library set because the scissors are quite long, which would make sense with cutting large paper or envelopes. Guess I will need to try to find the letter opener now. .