They are percussion. This is a flint with a strange shaped lockplateBelgian maybe?
Piedmontese model 1844/60 maight be worth a look
I believe you’ve got it there. Thank you. One of the conversions from flint, has the same lockplateOh yes
Frizzen went missen
One of these maybe
https://www.christies.com/lotfinder...n-service-muskets-second-5858461-details.aspx