The Victorinox Accountant Swiss Army knife is a rare, vintage Swiss Army "gentleman's" knife that has been retired since the 1980's. This model was produced in several "luxury" models, with bodies made of stainless steel (described here), mother of pearl and other materials.

The Accountant pocket knife is no longer produced by Victorinox, and it is very rare. When we manage to get one of these, we sell it individually as a collector's item.

Accountant Mother of Pearl-- same tools with mother of pearl scales
Ambassador-- no small blade, adds nail file and scissors
Pocket Pal-- no long file
Prince-- front-mounted nail file instead of rear-mounted long file