You actually have the answer to your own question, it's a Ross case. These US made cases differ in many details from their ROW counterparts.
Here is a very early KL6610 with a caliber 560.
That’s great info, thank you sir! I thought the Ross case might answer the discrepancies, but couldn’t find pics of an early enough example to verify. I guess not a pass after all...
See why only posting a photo of a single detail is pointless?
I posted the one case back photo I had, related to the case back question I had. But thank you for your contribution.
I just don't understand why you didn't state that the case wasn't a regular Swiss production case if you knew it at the time of posting?
I did my own research, as I always do before coming to the group for help. I didn’t see any differences between case backs on Swiss production vs. Ross. Apparently I wasn’t finding early enough examples. Hadn’t encountered Ross, didn’t know there was a difference which is why I didn’t mention it and included the photo I had. Now I see there is a difference and thanks to @X350 XJR I not only got my answer, but I learned something new. Which is why I come to this trusted group, for knowledge. Just like I’ve weighed in with my own knowledge over the years, to be helpful when I can.
Are you interested in helping and contributing or simply pointing out what you feel are flaws in the way a fellow member presents a genuine request for help?
You're right - not overly constructive, was I? Sorry.
