- 1General arrangement drawing no 23224 (YA1966.24/3/21/C/11/3347)
1875, item - 2General arrangement drawing no 28164 (YA1966.24/3/21/C/13/3783)
1879, item - 3General arrangement drawing no 28286 (YA1966.24/3/21/C/13/3784)
1879, item - 4General arrangement drawing no 34138 (YA1966.24/3/21/C/17/6309)
1882, item - 5General arrangement drawing no 34509 (YA1966.24/3/21/C/17/6310)
1882, item - 6General arrangement drawing no 37517 (YA1966.24/3/21/C/18/6466)
1884, item - 7General arrangement drawing no 38852 (YA1966.24/3/21/C/19/6562)
1885, item - 8General arrangement drawing no 49967 (YA1966.24/3/21/C/18/6467)
1885, item - 9Engineering drawings for orders recorded in Order Book No 1, numbers 1-258 (YA1966.24/3/21/C/1)
sub-sub-sub-series - 10Engineering drawings for orders recorded in Order Book No 13, numbers 3341-3500 (YA1966.24/3/21/C/11)
1875-1876, sub-sub-sub-series - 11Engineering drawings for orders recorded in Order Book No 21, numbers 6286-6427 (YA1966.24/3/21/C/17)
1882-1885, sub-sub-sub-series - 12Engineering drawings for orders recorded in Order Book No 22, numbers 6428-6560 (YA1966.24/3/21/C/18)
1883-1885, sub-sub-sub-series - 13Engineering drawings for orders recorded in Order Book No 23, numbers 6561-6683 (YA1966.24/3/21/C/19)
1885-1886, sub-sub-sub-series