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51. Incandescent Lamps for Sea-marks

Date:
20 Jun 1929
Extent:
1 item
Reference No:
C DPD/1/3/12/5/23

52. Instructions on Fire Prevention and Fire Fighting at Harbours: Where explosives, packed petrol or dangerous goods on ships carrying explosives are involved

Date:
22 Feb 1950
Extent:
1 item
Reference No:
C DPD/1/3/12/7/6

53. International Lighthouse Conference, 1929

Date:
1929
Extent:
24 items
Reference No:
C DPD/1/3/12/5

54. International Lighthouse Conference, Berlin, 1937

Date:
1937
Extent:
1 item
Reference No:
C DPD/1/3/12/6

55. International Lighthouse Conference, Berlin, 1937: Coloured Glasses for Lighthouse Purposes, by J. G. Holmes

Date:
1937
Extent:
1 item
Reference No:
C DPD/1/3/12/6/1

56. List of memoranda forwarded with Trinity House letter of 5th April 1929 (B. 4383/1928)

Date:
9 Apr 1929
Extent:
1 item
Reference No:
C DPD/1/3/12/5/14

57. London International Lighthouse Conference, 1929: Communication of the Netherland Lighthouse Service—Application of radio-technique with the Netherland Lighthouse Service

Date:
8 Apr 1929
Extent:
1 item
Reference No:
C DPD/1/3/12/5/13

58. Memorandum and Articles of Association of the Humber Pilots Steam Cutter Company Limited

Date:
18 Sep 1894
Extent:
1 item
Reference No:
C DPD/1/3/12/7/1

59. Mersey Docks and Harbour Board: River Mersey &C

Date:
8 Apr 1929
Extent:
1 item
Reference No:
C DPD/1/3/12/5/11

60. Method of Radio Bearings and their employment on the German Coasts

Date:
20 Jun 1929
Extent:
1 item
Reference No:
C DPD/1/3/12/5/24