Join Date: Sep 2008
Location: Bavaria, Germany - the center of 15th and 16th century gunmaking
This is a characteristic Late-Thirty Years War 'military' wheellock saddle pistol of Netherlandish type, the rounded lock plate with beveled edges denoting that it should be assigned to the second half of the 1640's-1650.
Provided that the ramrod is the original its iron finial may be threaded for a worm and scourer for cleaning the barrel.
I cannot make out the barrel marks but their general rectangular shape, most probably struck containing capital letters, is also typical of the Netherlands. Good close-ups (!) provided, I could probably tell you more.