Anyone help with some rough dates, Went to a "brick a brack" fair last weekend and came away with a 4 foot Atlas superslim and a 4 foot grey side pop pack, anyone know how to date these?. The superslim has got a white BLI choke and the pop pack has a black thorn choke. just interested what era they are from as i know pop packs where all white by the early 70s.
Cheers.

Hi,
Someone mut know the timelins of these fittings ?.
The superslim has 6505 stamped in it, could this be week 5 1965?.
When where the grey side pop packs started and finished?.
Thanks.