Origin of this one?

[SDC]

I'm looking at a book called "Islamic Weapons - Maghrib to Moghul", by Anthony Tirri, and he shows a picture of a couple of Moroccan snaphaunces that look very similar to yours, with the same style of stock, "divot" at the top of the stock for the thumb, bone inlays, trigger-guard, and lock; since these guns are usually made to the same pattern by the same craftsmen over and over again in a given area, I would say yours is from the same area of south-west Morocco.