Futura Medium* stroked. The L's appears slightly customised to make it more wide.

* In the bolder weights, A doesn't have a pointy top and it's counter is bigger so I'm inclined to think they added a stroke.

Also, here is a thread discussing which digital cut of Futura is the "best", I like to use Bitstream's.

Thanks Geoff seems like you are spot on :) Cheers.