34 spanner nickel early narrow, Square nuts, ¼" a/f, cranked, not tapered, no stamping, a very angular bend cranking, and a narrow 'continuous curve' at the non crank end, 72.5 mm long, 5.03 mm across at crank, 1.53mm thick. I don't know where this came from but it was decades ago.. OPM shows the spanner getting wider during the single Meccano stamp era under the longer cranked end, with the other end having a flattening of the curve at the short end which is where others have the MMIE stamping. It was badly spotted with rust, and in cleaning it up to have its photo took, it lost more of its plating..