"I still wonder whether we are talking about the $10,000 Lindner that was at Griffin and Howe for years."
If it is you can not tell me that they do not have the means to measure barrel wall thickness. They must have measured the gun and still thought it sell-able as is. If they did not measure the gun that says even more. That gun had been extensively restored and the barrels should have been checked for wall thickness. They did have that gun for years and I always suspected there was some reason for it. It was/is a very nice looking gun but priced at the max..
We all assume those tutonic guns are built like a rusian hooker. Stout as heck, thick as hell and hard a nails. But this gun had been made slim, trim and very light. The barrels were finished to keep the weight down not handle like a boat oar. Refinishing and then honing pits may have made it thinner that normal for a gun of this era.
