EDIT3: I have my tin now, thanks wolf1000wolf! No longer offering a pearl for tin.
Original message:
I have a q24 River Pearl which is worth a lot more than a mere 2 bars of tin, but I'm desperate for tin as I don't have a tin ore node nearby and I need bronze to not ruin the iron part of my chalcopyrite, so I'm offering 1 q24 River Pearl for 2 bars of tin (q10+).
I can travel to Myransk, Tunberg or Lynrovo for the trade.
(If you don't have coal yet I can provide a couple for free so you can use the crucible, I have plenty.)
EDIT: Going to sleep now, won't respond until at least 10 AM UTC. EDIT2: Back again, ready to trade any time.