Generally speaking, there are no records of the bolt and plate having been replaced because there was no charge for this upgrade.





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To answer your question, the second barrel set information could either be in the original letter, in a later "repair" letter, or in neither of these.

To answer your question, the second barrel set information could either be in the original letter, in a later "repair" letter, or in neither of these. Repairs are generally in a separate order book, not included in the regular gun order book. It could be among the missing books.