The miquelet is mostly associated to the countries of Spain Portugal, Italy Balkins and North Africa, This lock has modified internals of a wheel lock and was in production in flintlock and percussion for a period of nearly 200 years. Some of the better ones were of Spanish manufacture and made in Madrid but most countries had different styles of locks, there is a big difference in the shape of a Balkin lock and a Spanish lock See images .
Feltwad
The Spanish Lock
Spanish percussion lock
Lock internals
Feltwad
The Spanish Lock
Spanish percussion lock
Lock internals