This will be a good cigar rum, and interesting to pair because it has leather and tobacco in the mix already, as well as being on the sweet side, a good thing for cigars imo. I think 1919 is a bit less formidable and up front that 1824, so it should pair with a medium bodied cigar, not too strong a smoke if you want to keep the rum flavors running as well as the cigar. I haven't paired 1919 with cigars myself, but it makes sense. My experience is that a strong cigar will wipe out the underlying taste of the rum unless the spirit has a lot of character. 1919 certainly has character, but it's a bit more delicate than Angostura's other premium blends.
So, for a cigar: go here:
Torp is all over this, but I'd add that only research and experimentation will out your friend's favorite. A nice fresh bottle should give him plenty of opportunity for that!
Cigar pairing thread