Circa 1750. 78 caliber with a 13 ½” barrel. The barrel has a brown patina while the wood shows natural age with small splits and chips on a well used Flintlock pistol. The banana style lock has a name “H???EES?” that is only partially legible. By the profile, we feel this has a  chance of being Dutch. What is interesting on this gun is the serpentine side plate that you find on Indian trade guns. The ram rod pipes also look quite similar to the one you find on Indian Trade guns.  Flintlock Indian trade gun pistols are extremely rare with only a handful known. We think this has a chance of being a newly found one.