- 1General arrangement drawing no 15544 (YA1966.24/3/21/C/6/2391)
1869, item - 2General arrangement drawing no 17632 (YA1966.24/3/21/C/7/2643)
1871, item - 3Engineering drawings for orders recorded in Order Book No 7, numbers 2346-2572 (YA1966.24/3/21/C/6)
1869-1871, sub-sub-sub-series - 4Engineering drawings for orders recorded in Order Book No 8, numbers 2573-2771 (YA1966.24/3/21/C/7)
1870-1871, sub-sub-sub-series
