
Last modified: 2025-03-22 by shreyas tallamraju
Keywords: house flag | shipping: norway | 
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![[Jan-Erik Dyvi flag]](../images/n/no~dyvi.gif) image by Jarig Bakker, 25 October 2005
image by Jarig Bakker, 25 October 2005Oslo - white flag, hoisted blue "D"
Jarig Bakker, 25 October 2005
Dyvi was founded in 1955 by Jan-Erik Dyvi. It was the 
first to construct a purpose-built pure car carrier (PCC) in the 1960s. The company 
pioneered the Norwegian offshore oil drilling industry in the 1970s, becoming the 
largest operator before selling this business to Smedvig ASA in 1988. In addition, 
it took the lead in introducing semi-submersible heavy lift vessels. More than 30 
ships and offshore units have been built over the years, almost all of them prototypes 
and/or special-purpose vessels. The compagny have changed name from Jan-Erik Dyvi 
AS to Dyvi AS in 2004. web site: www.dyvi.no.
Dominique Cureau, 11 November 2006
It's hard to find the hometown, but a Google search 
makes it quite possible that it was Askerøyen in Norway.
Jarig Bakker, 22 December 2003 
![[J.C.A. Johannesen houseflag]](../images/n/no~jcaj.gif) iamge by António Martins-Tuválkin, 2 November 2023
 
iamge by António Martins-Tuválkin, 2 November 2023
Flag #2043 in the 1912 Lloyd’s flagbook [llo12]. Home port: 
Boon. The flag is red with a diagonal white stripe charged with JCAJ (black) in its upper part.
Ivan Sache, 24 January 2004
 I can now confirm this flag, having located it in a
Lloyds Maritime Atlas which shows Soon on the Oslo Fjord, up from Moss
and across from Tofte at 59 32 N 10 42 E.
Neale Rosanoski, 12 September 2009
![[John P. Pedersen houseflag]](../images/n/no~pedrs.gif) image by Jarig Bakker
image by Jarig Bakker#185 John P. Pedersen & Son, Oslo - triband Red-White-Red, 
proportioned c. 1:5:1, on white blue "JPP&S".
Jarig Bakker, 9 January 2005
 image by Ivan Sache, 1 June 2006
image by Ivan Sache, 1 June 2006
Porsgrund (today written Porsgrunn), a white swallow-tailed 
flag with a big, seriffed, black K. Number 590 in
Lloyd's book of house flags and funnels (1912)
[LLo12]
Ivan Sache, 1 June 2006
 image by  
  Ivan Sache, 14 December 2013
image by  
  Ivan Sache, 14 December 2013
Jørgen Jahre (1907-1998) was a nephew of the 
shipowner Anders Jahre (1891-1982). Jahre was 
President of the Football Association of Norway (1963-1965) and President of the 
Norwegian Olympic Committee (1965-1969).
Josef Nuesse's "Ships and Flags" website shows the house flag of Jørgen Jahre 
Shipping A/S, a Sandefjord-based company, as white with a cross made of a red 
horizontal arm and a light blue vertical arm, in the middle a blue square 
diamond charged with a white "J".
Sourse: 
http://www.flagpole.de/reedereiflaggen/europa/nordeuropa/ 
  Ivan Sache, 14 December 2013
 
 
 
 
