Hi Hugh,
I've never seen a KU below 3 digits. Further, it appears to me, based on Gibson's reference and updated information since that publication, that the KU "production" spanned a number of toggles/chamber dated marks - but serialization was fairly consistient.
I'm not convinced that of evidence doesn't point to something more conclusive about KU and their manufacturing/production mystery....
Anyway - 1834 would cerainly be lower, but is the KU a prefix or suffix to that number??? Any photos??!
Best to you!
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