Box containing ship plans and technical records. Ship plans - two plans for Yard Nos. 280-284, two plans for Yard No. 347 'Sao Paulo', one plan for Yard No.436 'HMS Nautilus', three plans for Submarine Boat 'A' Class, one plan for Submarine Boat 'B' Class, two plans for Submarine Boat 'C' Class, three plans for Submarine Boat 'D' Class, one plan for Submarine Boat 'E & AE' Class, one plan for Submarine Boat 'E' Class & two plans for Submarine Boat 'V' Class.
Technical records - One record for Yard No. 255 'TSS Gibel Dersa', two records for Yard No. 347 'Sao Paulo', two records for Yard Nos. 415-420, one record for Yard No.436 'HMS Nautilus', four records for Yard Nos. 436-437, one record for Yard Nos. 438-440, two records for Yard No.437, one envelope of records for Yard No.437, one envelope of records for Yard No.438, three records for Yard Nos.449-451, five records for Yard Nos.463-468, one record for 'TSS Colleen Bawn' & 'Mellifont', one record for Submarine Boat 'B' Class, one record for Submarine Boat 'D' Class, one record for Submarine Boat 'E' Class & one record for Submarine Boat 'V' Class.