I bought it, not sure what model it is though. http://www.ebay.com/itm/Vintage-Gil...oxwWz6%2FdjnG3qoNbs5Y%3D&orig_cvip=true&rt=nc
Definitely... Slim Adjustable. Yours was made in the second quarter of 1965. I have seen just the case bring close to that, very good price.