Thank you both for your replies.
I'd been wondering about the date: as it says
Made in Germany I'd assumed that meant either pre-Berlin Wall going up, or post-Berlin Wall coming down (so before 1961 or after 1989). 1960's puts them bang in the period of the partition of Germany, doesn't it?
So would that mean
Made in Germany means what was then West Germany? (as opposed to
Made in DDR as on my green jug.) Ivo's little book says that VEB were in the GDR - but I cannot remember if GDR means the same as DDR, or if GDR means West Germany. Can someone please clarify for me? Many thanks.