1st one in top row.
These site's say it's French. One says Military, One says Model 1842 ... M1842
https://www.gundersonmilitaria.com/parts.html
2 are listed as 'French M1842 Musket Hammer' almost 1/2 way down the page. 1st one has a Hex style hole. 2nd one seems to match.
2nd one:
Another here listed as 'Original Antique French Type Military Percussion Hammer Right Handed with Square Keyway'
William Henry Oakley And Sons Militaria. D22 Military Hammer
Pictures:
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