Elf petrol promotion Meccano kits 1998ish

[tonyvid]

Back in the late 90s Elf were doing a set of Meccano kits(1511-1516) and I had the cunning plan to collect all 6 along with the flyer advertising sheets to keep unopened and pay for my retirement(or loaf of bread...). After buying the recent Shell/Logo kits I thought about this little stash and had a quick Google and got one result, ONE!

I'm curious as to why these have vanished from the collectors interest, has anyone got any info please?

[tonyvid]

I had a look on Ebay a while ago and there was hardly a hit - maybe £30 on a good day so it's going to need a bit more "maturing" to be our pensions!