It runs in my mind that 17th century Englishmen, e.g. the Puritans, were fond of Italian arms & armor. There is an Italian matchlock musket in Plymouth, Massachusetts. Harold Peterson,
Arms and Armor in Colonial America, page 40 shows a wheel lock carbine found in Boston, believed to have been restocked in America. This carbine is in the NRA museum, if I recall correctly it is rifled and maybe .53 caliber.
So just for fun, here are photos of a double-dog Italian wheel lock, detatched, that I got in the Good Ol' Days from C.H. Weiz, Arlington, Virginia. The plate is 9" long. Except for the extra dog it is a decent match for that carbine at the NRA.
Some day I will learn how to take photos with my Nice Computerized camera (believe that?).
The plate is nearly exactly 9" long. Why two dogs you might well ask? Look at raspla's utube of shooting off the priming in his pistol. Pyrites tends to break suddenly. I recall some geologist explaining that there was more than one type of iron pyrites crystal found in nature, one of them being much to be preferred for gun use. I did not keep a record of this.