Buffet Crampon model?

Hi,

I found my old student clarinet (from around 1981). It's a Buffet Crampon and is meant to be a decent instrument but not sure what model it is as it has no obvious markings. Serial number: 220864. Can anyone help please?

https://preview.redd.it/yhdc6kzgx8d81.jpg?width=4032&format=pjpg&auto=webp&s=7f9dbff0dbe9ef069adef11067fc75dc5bb1472b