Indeed: I've got a few "Eveready" branded AAA cells here - can't remember where they came rom, must have been in some bit of work-related gear I imported from the 'states in the last half-decade.
Their cat-jumping-through-the-digit-9 [implying 'nine lives'] logo is kinda iconic.
One of my aunts worked - briefly - at the Ever Ready factory in Dawley [now part of Telford] in the early-1960s. Ever-Ready UK failed to acknowledge the coming of better battery technology and instead bet the farm on Zinc Chloride cells - a sort of halfway performance-niche between classic Leclanche Zinc-Carbon batteries and Alkaline-Manganese - which I remember them selling as "Silver Seal". The advantage of this to Ever Ready's investors was that Zinc Chloride cells could be produced with only minimal investment on changes to the existing Zinc-Carbobn production-lines.
See here:
https://www.independent.co.uk/news/b...d-1494225.html