Terrific aeroplane. Thanks for your input WHBM - I knew you would have something to contribute.
LBA was a relatively late entrant to the Yugoslavia holiday market, given that it didn't have a sufficiently long runway for the Adria/Aviogenex/JAT fleets until 1985. Prior to then, Britannia operated a series of Saturday morning Pula flights using a Transavia 737 during the summer of 1983. Thereafter Yugotours settled in, initially just using JAT but eventually Adria (Tarom 1-11) and Aviogenex joined the fray too.
It was quite exciting to see a 707 at LBA for the first time, as well as unexpected. I'd seen plenty of them at Manchester but it was the first 'plus-size' Boeing to use LBA regularly until the Britannia 767, so it was quite something.