Help identifying LEAK speakers


Hello,

I’ve inherited a pair of LEAK speakers (and some other hi fi stuff) and wondered if anyone could help identify the models? It looks like a label has been removed from the back, and the only identifiable marks are the LEAK logo, and hand-etched/written 4/71 on both which I guess is the manufacturing date?

Sorry if this is like trying to find a needle in a haystack! Any information would be welcome.

I’ve made a small album of images here:

https://photos.app.goo.gl/nLazzQ3RT3BcnGus5

paulcapewell