Very nice, Dirk!
A real gem.
I've seen the rebranded L70 & amp before, also as seperates (not my gear):
Although the amp seems a bit different:
They were also sold with the Ex Libris mark:
https://www.lencoheaven.net/forum/index.php?topic=28551.0The earliest AP L70 I have documented so far is 1961.
Great score!