A South African 14 bore flintlock musket

A South African 14 bore flintlock musket, sighted barrel 39 in., shallow top rib with part visible London retailer's mark, Birmingham view and proof marks, flat lock with residual engraving and ring necked cock, full stock with brass furniture, deeply curving butt with cheek rest of the right, left side carved with the name 'Louis Botha Vryhail'.