Now that I've had the second cup of coffee, could it be a follow-up accounting adjustment for items of former French property left in the U.S. as part of the Louisiana purchase in 1803? That might make sense, because such items would have to be put "on the books" somehow if they became U.S. property, from what I can gather from the accounting methods I see in these ledgers.
I see the page is "continued" but unfortunately I didn't look at or photograph the following page, and will have to remember to look there on next visit to Nat. Archives. Hopefully the US got a supply of ammo with these weapons, since US ammo of the same numbered caliber would be slightly smaller in diameter.
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