Maarten Yes, that's similar to how it looked. They got away from the 62mm size in 1930 apparently. It's also lumped into the common model name Accountant but those are really bigger knives.
Sometimes I buy from online auctions but I've been buying a lot of stuff in France directly. Once I purchase something from someone who's an obvious collector I will recontact them again weeks or months later and just ask them if they have anything they are thinking of moving on. So really the original contact was on an online sale but I do the leg work later. Skip the fees and don't have to compete with anyone else. I know I can trust them at that point usually. I don't do this all the time but that's really paid off for me.