That’s the Emperor 2 Best. I once had an Emperor 1, a small but powerful little brush. The 2 did a fine job with Meißner Tremonia’s Woody Almond shaving paste, which makes a very nicely fragranced lather.
Three passes with the wonderful Dorco PL602 (and again my thanks to Victor Marks for pointing it out) left my face perfectly smooth with never so much as the threat of nick, and good splash of Woods aftershave from the belated Saint Charles Shave finished the job.