This is a rather fancy Victorinox Ambassador with diamond cut gold plated scales. I already had one of these in fair condition, but this one is actually brand new. It has an embossed Swiss shield on the front, no scale tools and no keyring.
This luxury model (0.6500.88) came in a nice burgundy gift box.
I finally found the sixth Ambassador from the RocKnives collection :) It took me a couple of years to find all six:
A nice trio of commemorative Swiss Army knives with Confoederatio Helvetica 1291-1991 inlays. A Classic SD, an Ambassador and a Huntsman.
I already had a Huntsman like it (except this one is mint), and I had seen pictures of the Classic SD as well. But the middle one is uncommon if I am correct. It’s the only 74mm Confoederatio Helvetica model I have ever seen.
Latest additions to the 74mm family: a yellow Executive with an Emmentaler logo and a black Ambassador sans shield & cross. I am usually not interested in knives with company logos, but I think this yellow one is quite nice.
You cannot tell from the pictures, but it looks like the previous owner sanded away some sort of company name or inscription on the back of the Ambassador.
This Ambassador with keyring was part of Victorinox Collection no. 1., sold between 1989 and 1997. It is listed on EDC Source.