Flintlock rifle with battery lock

Flintlock gun with battery lock, smooth round barrel and profile band at the breech. The barrel at the breech marked with the Amsterdam assay mark and the lock attached with two bolts. On the lock plate inscription: J.G. Erttel Amsterdam. Walnut French stock and inlaid silver wire at the lock and on the stock. On the stock neck silver plate with crown of silver wire above. Four brass bands around barrel and stock, first with front sight above and case for ramrod below, second with hinged iron eye. Trigger guard with double lines and leaf motifs. Buttplate roof-shaped with two eyes for lock bolts and one for screw with which trigger is attached. Stock cap with four screws.