1. PLAN: sea defence wall for proposed Mussel Purification Station at Lytham. Scale: ½ =1 ft. [Stamped MAFF, Fisheries Experiment Station, Conwy, library stamp.] (1934 April)
2. CONVERSION of weighed lead from lbs. to cwt. Also other dimensions, conversions and calculations (1953 July 12).
3. ITEMS [? on loan] from Lympstone at Conwy tanks (1940s).
4. DIAGRAM of mean monthly rainfall for 20 years at the Conwy tanks (1923-1942).
5. LIST: place names with amounts and calculations.
6. MONTHLY CHART: [? average rainfall] (1943-1948).
7. RECEIPT for items received from MAFF, Conwy (1955 Feb 23).