Black powder flasks from Edo Period when matchlock guns (hinawaju) were still in use. Two leather pouches included as bonus items.
I don't think they are associated with matchlocks, but they came with powder flasks. The item "Antique Japanese Hinawaju Matchlock Black Powder Flask FIVE ITEMS" is in sale since Thursday, September 23, 2021. This item is in the category "Antiques\Asian Antiques\Middle East".
The seller is "komonjo" and is located in Berkeley, California. This item can be shipped worldwide.