Kyrie has laid out a pretty good outline of what the trouble was, it wasn’t a year thing, it was small manufacturers suddenly being inundated with orders that the cottage industry that supplied smalls was not really able to cope with. It affected all the Spanish makers, here and there. I think his advice was to look for guns that had a known history of use, as, those guns would either have been repaired if they had trouble, or, never had it to begin with.

That isn’t always possible, clearly. I know people, myself included, who have never had a problem, and, more than one English trained ‘Smith that spit on the floor when you mention Spanish makers. It must have been a heck of an issue, at one time.

See if you can search Kyrie’s posts here, which is a good place to start. He is still out there, but, doesn’t post all that much anymore.

Good luck. Mine is an Uggy boxlock, by the way, no trouble to report, but, it was vetted by Cole Haugh, who imported and worked on the guns, back in the day. Still looks good, too.

[Linked Image from i.ibb.co]

Best,
Ted