- 1Engineering drawing no 97920 (YA1966.24/3/21/C/21/6868/2)
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1925, item - 2General arrangement drawings for Beyer, Peacock order 6868 (YA1966.24/3/21/C/21/6868)
1887-1925, sub-sub-sub-sub-series - 3Engineering drawings for orders recorded in Order Book No 26, numbers 6807-6940 (YA1966.24/3/21/C/21)
1886-1925, sub-sub-sub-series
