Thanks Len and Peter for your information. I suppose the smell could be phenolic, although it's not predominantly the smell of phenol-as-in-hyroxybenzene. I was actually surprised to just this moment find an old bottle. I don't know what vintage it is -- it's a black plastic bottle which unfortunately has no label or markings of any kind, except for a curious short arc of groove on the bottom, and sundry teethmarks on the cap. It appears to contain Royal Blue after all, which is a relief since Len's sample of washable blue is much greener than I remembered. On the other hand, I'm sure the blue Skrip I used wasn't permanent. Maybe there
is a Deluxe Blue Skrip which is distinct from the Royal and the Washable?...
Relative to Len's photo, this stuff appears more like the Pelikan 4001 Royal Blue than any of the others. I don't know what to suggest for better colour -- a scanner ought to do quite well, except with the violet end of the spectrum. (J. Herbin Violette Pensee looks about like Waterman's Florida Blue to me when scanned.) Your camera with strong daylight but not direct solar glare should also give nice colour. Maybe you should start a post about this problem, so someone with answers can help?
Wow! This stuff smells
super good to me.... Cool! I can't believe I still have this stuff with me, after 123456789... yeesh 14 moves (in 7 years). I have a sniff, and it reminds me of something, I can't quite place it, and then I realise, it reminds me of filling my fountain pen way back when I used to use this ink. What better reminiscence could I hope for?

Maybe also the smell of the drawer of my Dad's old writing desk.