Hmm. Interesting. Thanks for that. I guess they are names of different rose varieties. I did a search on 'Elizabeth Harkness' and it returned a link to roses.co.uk. I'd always thought they were names of some famous ships or something.
Looks like they may have renamed some of the 1011's later on. I looked for G-BGBB ('The Lakeland Rose') but the aircraft seems to have a different name. I can't quite make out what it says, but it's definitely not 'The Lakeland Rose'.
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Photo © Torsten Maiwald