Rory Gallagher "Philby"

Some thirty years ago I had one Rory Gallagher single, and I "slaughtered" it listening to it again and again. I don't remember what was on B side of that disc, but it isn't important, because on A was "Philby" from "Top Priority" album - absolutely fantastic piece of classic, beefy guitar playing. I'm sure it is worth recalling the sound of a real rock, not a tinkling for teens :)
Enjoy!