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11. J. 3436 Blue Prints and other information relating to the wireless, nautophone, oscillator, and the new code machine (1933), of the Spurn Lightship

Date:
18 Feb 1930
Extent:
1 package (17 pieces)
Reference No:
C DPD/1/3/8/3/13

12. J. 3504 'Humber Conservancy Board: Proposed Layout of Sound Emitter Control Equipment for No. 12 Lightvessel'

Date:
c 1928
Extent:
1 sheet
Reference No:
C DPD/1/3/8/3/14

13. The Gas Accumulator Company (UK) Limited: Lantern Diagrams

Date:
12 Mar 1929
Extent:
1 folder (14 pieces)
Reference No:
C DPD/1/3/8/3/11

14. The Gas Accumulator Company (UK) Limited: Photographs of Spurn Lightship Lantern

Date:
12 Mar 1929
Extent:
1 folder (4 photographs)
Reference No:
C DPD/1/3/8/3/12