You never seen a stile then? - its just a way of getting over a fence or wall where a path goes across a field , without having to open a gate, as there may be animals there.
Bricks done. Just got to brush them down after a cuppa. Could have sworn I had a full size trowel. Had to use a pointing trowel ffs.
Went for engineers. The faces of the bricks in the original wall are dropping off like you wouldn't believe. Not designed for the damp I guess.