I have revived the Site-related Forum thread on IMO/Miramar numbers - and taken the liberty of copying over the last two below
http://forum.shipspotting.com/index.php/topic,16270.0.html

Please do not add further comments on this here.

Adenanthos, agreed...

Who cares about the fact that 5607782 is not an official valid IMO number, we only use this Miramar number in order to group all the photo's together, not everyone will now be aware that there are several nice other pictures of this vessel on the site.
This same discussion was made some time ago on this forum and it was then agreed to allow it this way only for reasons of getting the same photo's of a certain vessel together.
After all "Shipspotting" is not an official Government or Maritime institution.
May be we should add "Miramar" to the IMO/LR entry

Greetings to everyone

Just for the record, I did not add the "IMO" number, for this ship.

Her forward superstructure is like a work of art.

A thing of beauty

Correct Bjorn. This ship never had a 7-digit LR/IMO number

WORLD SPLENDOUR - IMO 5607782 is not a valid IMO number

A reminder of the days when tankers were beautiful, and very, very dangerous!